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Finding the Fourth Proportional to 404,572.38, 558,290.90 and 232,369.20

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Solution

The fourth proportional to 404,572.38, 558,290.90 and 232,369.20 is: 320,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,572.38 : 558,290.90 = 232,369.20 : x
  2. Step 2: Convert to fraction form
    404,572.38/558,290.90 = 232,369.20/x
  3. Step 3: Cross multiply
    404,572.38x = 558,290.90 × 232,369.20
  4. Step 4: Simplify right side
    404,572.38x = 129,729,609,800.28
  5. Step 5: Solve for x
    x = 129,729,609,800.28/404,572.38
  6. Step 6: Final answer
    x = 320,658.59

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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.