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Finding the Fourth Proportional to 461,397.96, 636,486.66 and 375,453.72

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Solution

The fourth proportional to 461,397.96, 636,486.66 and 375,453.72 is: 517,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,397.96 : 636,486.66 = 375,453.72 : x
  2. Step 2: Convert to fraction form
    461,397.96/636,486.66 = 375,453.72/x
  3. Step 3: Cross multiply
    461,397.96x = 636,486.66 × 375,453.72
  4. Step 4: Simplify right side
    461,397.96x = 238,971,284,227.38
  5. Step 5: Solve for x
    x = 238,971,284,227.38/461,397.96
  6. Step 6: Final answer
    x = 517,928.78

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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.