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Finding the Fourth Proportional to 503,511.68, 755,267.54 and 187,993.20

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Solution

The fourth proportional to 503,511.68, 755,267.54 and 187,993.20 is: 281,989.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,511.68 : 755,267.54 = 187,993.20 : x
  2. Step 2: Convert to fraction form
    503,511.68/755,267.54 = 187,993.20/x
  3. Step 3: Cross multiply
    503,511.68x = 755,267.54 × 187,993.20
  4. Step 4: Simplify right side
    503,511.68x = 141,985,161,700.73
  5. Step 5: Solve for x
    x = 141,985,161,700.73/503,511.68
  6. Step 6: Final answer
    x = 281,989.81

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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.