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Finding the Fourth Proportional to 624,860.43, 862,308.23 and 338,381.01

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Solution

The fourth proportional to 624,860.43, 862,308.23 and 338,381.01 is: 466,966.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,860.43 : 862,308.23 = 338,381.01 : x
  2. Step 2: Convert to fraction form
    624,860.43/862,308.23 = 338,381.01/x
  3. Step 3: Cross multiply
    624,860.43x = 862,308.23 × 338,381.01
  4. Step 4: Simplify right side
    624,860.43x = 291,788,729,798.71
  5. Step 5: Solve for x
    x = 291,788,729,798.71/624,860.43
  6. Step 6: Final answer
    x = 466,966.25

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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.