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Finding the Fourth Proportional to 932,736, 1,287,175.68 and 530,328

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Solution

The fourth proportional to 932,736, 1,287,175.68 and 530,328 is: 731,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,736 : 1,287,175.68 = 530,328 : x
  2. Step 2: Convert to fraction form
    932,736/1,287,175.68 = 530,328/x
  3. Step 3: Cross multiply
    932,736x = 1,287,175.68 × 530,328
  4. Step 4: Simplify right side
    932,736x = 682,625,304,023.04
  5. Step 5: Solve for x
    x = 682,625,304,023.04/932,736
  6. Step 6: Final answer
    x = 731,852.64

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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.