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Finding the Fourth Proportional to 389,350.97, 584,045.58 and 189,841.89

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Solution

The fourth proportional to 389,350.97, 584,045.58 and 189,841.89 is: 284,772.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,350.97 : 584,045.58 = 189,841.89 : x
  2. Step 2: Convert to fraction form
    389,350.97/584,045.58 = 189,841.89/x
  3. Step 3: Cross multiply
    389,350.97x = 584,045.58 × 189,841.89
  4. Step 4: Simplify right side
    389,350.97x = 110,876,316,753.35
  5. Step 5: Solve for x
    x = 110,876,316,753.35/389,350.97
  6. Step 6: Final answer
    x = 284,772.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.