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Finding the Fourth Proportional to 477,712.47, 715,894.77 and 372,062.55

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Solution

The fourth proportional to 477,712.47, 715,894.77 and 372,062.55 is: 557,568.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,712.47 : 715,894.77 = 372,062.55 : x
  2. Step 2: Convert to fraction form
    477,712.47/715,894.77 = 372,062.55/x
  3. Step 3: Cross multiply
    477,712.47x = 715,894.77 × 372,062.55
  4. Step 4: Simplify right side
    477,712.47x = 266,357,633,657.86
  5. Step 5: Solve for x
    x = 266,357,633,657.86/477,712.47
  6. Step 6: Final answer
    x = 557,568.94

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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.