Home / 3,830,560.38-5,286,189.34-2,111,643.18

Finding the Fourth Proportional to 3,830,560.38, 5,286,189.34 and 2,111,643.18

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Solution

The fourth proportional to 3,830,560.38, 5,286,189.34 and 2,111,643.18 is: 2,914,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830,560.38 : 5,286,189.34 = 2,111,643.18 : x
  2. Step 2: Convert to fraction form
    3,830,560.38/5,286,189.34 = 2,111,643.18/x
  3. Step 3: Cross multiply
    3,830,560.38x = 5,286,189.34 × 2,111,643.18
  4. Step 4: Simplify right side
    3,830,560.38x = 11,162,545,667,999.70
  5. Step 5: Solve for x
    x = 11,162,545,667,999.70/3,830,560.38
  6. Step 6: Final answer
    x = 2,914,076.42

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Half scale
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Double scale
Find fourth proportional to 3,830,561.38, 5,286,190.72 and 2,111,644.18
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.