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Finding the Fourth Proportional to 477,709.97, 715,891.03 and 372,060.05

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Solution

The fourth proportional to 477,709.97, 715,891.03 and 372,060.05 is: 557,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,709.97 : 715,891.03 = 372,060.05 : x
  2. Step 2: Convert to fraction form
    477,709.97/715,891.03 = 372,060.05/x
  3. Step 3: Cross multiply
    477,709.97x = 715,891.03 × 372,060.05
  4. Step 4: Simplify right side
    477,709.97x = 266,354,447,906.75
  5. Step 5: Solve for x
    x = 266,354,447,906.75/477,709.97
  6. Step 6: Final answer
    x = 557,565.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.