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Finding the Fourth Proportional to 503,165.80, 754,748.70 and 187,581.70

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Solution

The fourth proportional to 503,165.80, 754,748.70 and 187,581.70 is: 281,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,165.80 : 754,748.70 = 187,581.70 : x
  2. Step 2: Convert to fraction form
    503,165.80/754,748.70 = 187,581.70/x
  3. Step 3: Cross multiply
    503,165.80x = 754,748.70 × 187,581.70
  4. Step 4: Simplify right side
    503,165.80x = 141,577,044,218.79
  5. Step 5: Solve for x
    x = 141,577,044,218.79/503,165.80
  6. Step 6: Final answer
    x = 281,372.55

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Double scale
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Similar ratio
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1.5x scale

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.