Home / 1,306,081,728.25-1,802,392,806.86-719,370,864.25

Finding the Fourth Proportional to 1,306,081,728.25, 1,802,392,806.86 and 719,370,864.25

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Solution

The fourth proportional to 1,306,081,728.25, 1,802,392,806.86 and 719,370,864.25 is: 992,731,804.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,081,728.25 : 1,802,392,806.86 = 719,370,864.25 : x
  2. Step 2: Convert to fraction form
    1,306,081,728.25/1,802,392,806.86 = 719,370,864.25/x
  3. Step 3: Cross multiply
    1,306,081,728.25x = 1,802,392,806.86 × 719,370,864.25
  4. Step 4: Simplify right side
    1,306,081,728.25x = 1,296,588,871,188,861,440
  5. Step 5: Solve for x
    x = 1,296,588,871,188,861,440/1,306,081,728.25
  6. Step 6: Final answer
    x = 992,731,804.71

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Half scale
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Double scale
Find fourth proportional to 1,306,081,729.25, 1,802,392,808.24 and 719,370,865.25
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.