Home / 805,069.18-1,111,100.58-519,420.25

Finding the Fourth Proportional to 805,069.18, 1,111,100.58 and 519,420.25

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Solution

The fourth proportional to 805,069.18, 1,111,100.58 and 519,420.25 is: 716,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,069.18 : 1,111,100.58 = 519,420.25 : x
  2. Step 2: Convert to fraction form
    805,069.18/1,111,100.58 = 519,420.25/x
  3. Step 3: Cross multiply
    805,069.18x = 1,111,100.58 × 519,420.25
  4. Step 4: Simplify right side
    805,069.18x = 577,128,132,886.14
  5. Step 5: Solve for x
    x = 577,128,132,886.14/805,069.18
  6. Step 6: Final answer
    x = 716,867.76

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Double scale
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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.