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Finding the Fourth Proportional to 463,264.93, 639,316.43 and 259,310.78

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Solution

The fourth proportional to 463,264.93, 639,316.43 and 259,310.78 is: 357,854.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,264.93 : 639,316.43 = 259,310.78 : x
  2. Step 2: Convert to fraction form
    463,264.93/639,316.43 = 259,310.78/x
  3. Step 3: Cross multiply
    463,264.93x = 639,316.43 × 259,310.78
  4. Step 4: Simplify right side
    463,264.93x = 165,781,642,130.12
  5. Step 5: Solve for x
    x = 165,781,642,130.12/463,264.93
  6. Step 6: Final answer
    x = 357,854.94

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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.