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Finding the Fourth Proportional to 503,630.40, 755,359.20 and 187,924.80

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Solution

The fourth proportional to 503,630.40, 755,359.20 and 187,924.80 is: 281,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,630.40 : 755,359.20 = 187,924.80 : x
  2. Step 2: Convert to fraction form
    503,630.40/755,359.20 = 187,924.80/x
  3. Step 3: Cross multiply
    503,630.40x = 755,359.20 × 187,924.80
  4. Step 4: Simplify right side
    503,630.40x = 141,950,726,588.16
  5. Step 5: Solve for x
    x = 141,950,726,588.16/503,630.40
  6. Step 6: Final answer
    x = 281,854.96

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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.