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Finding the Fourth Proportional to 497,279.36, 746,440.78 and 440,715.17

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Solution

The fourth proportional to 497,279.36, 746,440.78 and 440,715.17 is: 661,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,279.36 : 746,440.78 = 440,715.17 : x
  2. Step 2: Convert to fraction form
    497,279.36/746,440.78 = 440,715.17/x
  3. Step 3: Cross multiply
    497,279.36x = 746,440.78 × 440,715.17
  4. Step 4: Simplify right side
    497,279.36x = 328,967,776,016.95
  5. Step 5: Solve for x
    x = 328,967,776,016.95/497,279.36
  6. Step 6: Final answer
    x = 661,535.15

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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.