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Finding the Fourth Proportional to 675,934.40, 932,691.84 and 374,127.68

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Solution

The fourth proportional to 675,934.40, 932,691.84 and 374,127.68 is: 516,242.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,934.40 : 932,691.84 = 374,127.68 : x
  2. Step 2: Convert to fraction form
    675,934.40/932,691.84 = 374,127.68/x
  3. Step 3: Cross multiply
    675,934.40x = 932,691.84 × 374,127.68
  4. Step 4: Simplify right side
    675,934.40x = 348,945,834,254.13
  5. Step 5: Solve for x
    x = 348,945,834,254.13/675,934.40
  6. Step 6: Final answer
    x = 516,242.16

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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.