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Finding the Fourth Proportional to 503,285.60, 754,695.11 and 187,657.76

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Solution

The fourth proportional to 503,285.60, 754,695.11 and 187,657.76 is: 281,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,285.60 : 754,695.11 = 187,657.76 : x
  2. Step 2: Convert to fraction form
    503,285.60/754,695.11 = 187,657.76/x
  3. Step 3: Cross multiply
    503,285.60x = 754,695.11 × 187,657.76
  4. Step 4: Simplify right side
    503,285.60x = 141,624,393,825.55
  5. Step 5: Solve for x
    x = 141,624,393,825.55/503,285.60
  6. Step 6: Final answer
    x = 281,399.65

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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.