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Finding the Fourth Proportional to 675,962.50, 932,930.71 and 385,572.64

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Solution

The fourth proportional to 675,962.50, 932,930.71 and 385,572.64 is: 532,148.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,962.50 : 932,930.71 = 385,572.64 : x
  2. Step 2: Convert to fraction form
    675,962.50/932,930.71 = 385,572.64/x
  3. Step 3: Cross multiply
    675,962.50x = 932,930.71 × 385,572.64
  4. Step 4: Simplify right side
    675,962.50x = 359,712,556,791.77
  5. Step 5: Solve for x
    x = 359,712,556,791.77/675,962.50
  6. Step 6: Final answer
    x = 532,148.69

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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.