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Finding the Fourth Proportional to 624,635.07, 861,999.13 and 338,155.14

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Solution

The fourth proportional to 624,635.07, 861,999.13 and 338,155.14 is: 466,655.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,635.07 : 861,999.13 = 338,155.14 : x
  2. Step 2: Convert to fraction form
    624,635.07/861,999.13 = 338,155.14/x
  3. Step 3: Cross multiply
    624,635.07x = 861,999.13 × 338,155.14
  4. Step 4: Simplify right side
    624,635.07x = 291,489,436,485.03
  5. Step 5: Solve for x
    x = 291,489,436,485.03/624,635.07
  6. Step 6: Final answer
    x = 466,655.57

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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.