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Finding the Fourth Proportional to 463,356.54, 639,396.68 and 259,360.74

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Solution

The fourth proportional to 463,356.54, 639,396.68 and 259,360.74 is: 357,898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,356.54 : 639,396.68 = 259,360.74 : x
  2. Step 2: Convert to fraction form
    463,356.54/639,396.68 = 259,360.74/x
  3. Step 3: Cross multiply
    463,356.54x = 639,396.68 × 259,360.74
  4. Step 4: Simplify right side
    463,356.54x = 165,834,396,078.34
  5. Step 5: Solve for x
    x = 165,834,396,078.34/463,356.54
  6. Step 6: Final answer
    x = 357,898.04

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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.