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Finding the Fourth Proportional to 431,851.18, 595,646.10 and 374,387.74

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Solution

The fourth proportional to 431,851.18, 595,646.10 and 374,387.74 is: 516,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,851.18 : 595,646.10 = 374,387.74 : x
  2. Step 2: Convert to fraction form
    431,851.18/595,646.10 = 374,387.74/x
  3. Step 3: Cross multiply
    431,851.18x = 595,646.10 × 374,387.74
  4. Step 4: Simplify right side
    431,851.18x = 223,002,597,218.81
  5. Step 5: Solve for x
    x = 223,002,597,218.81/431,851.18
  6. Step 6: Final answer
    x = 516,387.61

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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.