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Finding the Fourth Proportional to 587,129.72, 810,238.98 and 332,530.12

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Solution

The fourth proportional to 587,129.72, 810,238.98 and 332,530.12 is: 458,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,129.72 : 810,238.98 = 332,530.12 : x
  2. Step 2: Convert to fraction form
    587,129.72/810,238.98 = 332,530.12/x
  3. Step 3: Cross multiply
    587,129.72x = 810,238.98 × 332,530.12
  4. Step 4: Simplify right side
    587,129.72x = 269,428,865,248.08
  5. Step 5: Solve for x
    x = 269,428,865,248.08/587,129.72
  6. Step 6: Final answer
    x = 458,891.55

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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.