Home / 638,036.12-880,551.91-476,610.92

Finding the Fourth Proportional to 638,036.12, 880,551.91 and 476,610.92

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Solution

The fourth proportional to 638,036.12, 880,551.91 and 476,610.92 is: 657,769.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,036.12 : 880,551.91 = 476,610.92 : x
  2. Step 2: Convert to fraction form
    638,036.12/880,551.91 = 476,610.92/x
  3. Step 3: Cross multiply
    638,036.12x = 880,551.91 × 476,610.92
  4. Step 4: Simplify right side
    638,036.12x = 419,680,653,549.80
  5. Step 5: Solve for x
    x = 419,680,653,549.80/638,036.12
  6. Step 6: Final answer
    x = 657,769.43

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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.