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Finding the Fourth Proportional to 496,713.78, 684,645.18 and 351,331.74

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Solution

The fourth proportional to 496,713.78, 684,645.18 and 351,331.74 is: 484,257.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,713.78 : 684,645.18 = 351,331.74 : x
  2. Step 2: Convert to fraction form
    496,713.78/684,645.18 = 351,331.74/x
  3. Step 3: Cross multiply
    496,713.78x = 684,645.18 × 351,331.74
  4. Step 4: Simplify right side
    496,713.78x = 240,537,582,372.01
  5. Step 5: Solve for x
    x = 240,537,582,372.01/496,713.78
  6. Step 6: Final answer
    x = 484,257.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.