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Finding the Fourth Proportional to 474,283.25, 711,108.85 and 261,151.52

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Solution

The fourth proportional to 474,283.25, 711,108.85 and 261,151.52 is: 391,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,283.25 : 711,108.85 = 261,151.52 : x
  2. Step 2: Convert to fraction form
    474,283.25/711,108.85 = 261,151.52/x
  3. Step 3: Cross multiply
    474,283.25x = 711,108.85 × 261,151.52
  4. Step 4: Simplify right side
    474,283.25x = 185,707,158,677.50
  5. Step 5: Solve for x
    x = 185,707,158,677.50/474,283.25
  6. Step 6: Final answer
    x = 391,553.28

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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.