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Finding the Fourth Proportional to 503,724.17, 755,585.42 and 345,472.85

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Solution

The fourth proportional to 503,724.17, 755,585.42 and 345,472.85 is: 518,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,724.17 : 755,585.42 = 345,472.85 : x
  2. Step 2: Convert to fraction form
    503,724.17/755,585.42 = 345,472.85/x
  3. Step 3: Cross multiply
    503,724.17x = 755,585.42 × 345,472.85
  4. Step 4: Simplify right side
    503,724.17x = 261,034,242,960.56
  5. Step 5: Solve for x
    x = 261,034,242,960.56/503,724.17
  6. Step 6: Final answer
    x = 518,208.70

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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.