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Finding the Fourth Proportional to 410,101.20, 614,575.80 and 326,005.20

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Solution

The fourth proportional to 410,101.20, 614,575.80 and 326,005.20 is: 488,549.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,101.20 : 614,575.80 = 326,005.20 : x
  2. Step 2: Convert to fraction form
    410,101.20/614,575.80 = 326,005.20/x
  3. Step 3: Cross multiply
    410,101.20x = 614,575.80 × 326,005.20
  4. Step 4: Simplify right side
    410,101.20x = 200,354,906,594.16
  5. Step 5: Solve for x
    x = 200,354,906,594.16/410,101.20
  6. Step 6: Final answer
    x = 488,549.92

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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.