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Finding the Fourth Proportional to 312,818.96, 431,857.66 and 244,691.17

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Solution

The fourth proportional to 312,818.96, 431,857.66 and 244,691.17 is: 337,804.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,818.96 : 431,857.66 = 244,691.17 : x
  2. Step 2: Convert to fraction form
    312,818.96/431,857.66 = 244,691.17/x
  3. Step 3: Cross multiply
    312,818.96x = 431,857.66 × 244,691.17
  4. Step 4: Simplify right side
    312,818.96x = 105,671,756,098.86
  5. Step 5: Solve for x
    x = 105,671,756,098.86/312,818.96
  6. Step 6: Final answer
    x = 337,804.83

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1.5x scale

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.