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Finding the Fourth Proportional to 503,143.38, 755,016.39 and 187,821.72

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Solution

The fourth proportional to 503,143.38, 755,016.39 and 187,821.72 is: 281,845.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,143.38 : 755,016.39 = 187,821.72 : x
  2. Step 2: Convert to fraction form
    503,143.38/755,016.39 = 187,821.72/x
  3. Step 3: Cross multiply
    503,143.38x = 755,016.39 × 187,821.72
  4. Step 4: Simplify right side
    503,143.38x = 141,808,476,997.99
  5. Step 5: Solve for x
    x = 141,808,476,997.99/503,143.38
  6. Step 6: Final answer
    x = 281,845.06

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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.