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Finding the Fourth Proportional to 503,287.60, 754,698.11 and 187,659.76

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Solution

The fourth proportional to 503,287.60, 754,698.11 and 187,659.76 is: 281,402.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,287.60 : 754,698.11 = 187,659.76 : x
  2. Step 2: Convert to fraction form
    503,287.60/754,698.11 = 187,659.76/x
  3. Step 3: Cross multiply
    503,287.60x = 754,698.11 × 187,659.76
  4. Step 4: Simplify right side
    503,287.60x = 141,626,462,421.56
  5. Step 5: Solve for x
    x = 141,626,462,421.56/503,287.60
  6. Step 6: Final answer
    x = 281,402.65

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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.