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Finding the Fourth Proportional to 387,753.72, 534,881.58 and 226,574.52

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Solution

The fourth proportional to 387,753.72, 534,881.58 and 226,574.52 is: 312,545.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,753.72 : 534,881.58 = 226,574.52 : x
  2. Step 2: Convert to fraction form
    387,753.72/534,881.58 = 226,574.52/x
  3. Step 3: Cross multiply
    387,753.72x = 534,881.58 × 226,574.52
  4. Step 4: Simplify right side
    387,753.72x = 121,190,537,245.34
  5. Step 5: Solve for x
    x = 121,190,537,245.34/387,753.72
  6. Step 6: Final answer
    x = 312,545.13

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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.