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Finding the Fourth Proportional to 461,677.80, 636,713.78 and 325,471.40

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Solution

The fourth proportional to 461,677.80, 636,713.78 and 325,471.40 is: 448,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,677.80 : 636,713.78 = 325,471.40 : x
  2. Step 2: Convert to fraction form
    461,677.80/636,713.78 = 325,471.40/x
  3. Step 3: Cross multiply
    461,677.80x = 636,713.78 × 325,471.40
  4. Step 4: Simplify right side
    461,677.80x = 207,232,125,375.89
  5. Step 5: Solve for x
    x = 207,232,125,375.89/461,677.80
  6. Step 6: Final answer
    x = 448,867.43

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1.5x scale

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.