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Finding the Fourth Proportional to 441,870.40, 662,125.20 and 329,021.20

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Solution

The fourth proportional to 441,870.40, 662,125.20 and 329,021.20 is: 493,025.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,870.40 : 662,125.20 = 329,021.20 : x
  2. Step 2: Convert to fraction form
    441,870.40/662,125.20 = 329,021.20/x
  3. Step 3: Cross multiply
    441,870.40x = 662,125.20 × 329,021.20
  4. Step 4: Simplify right side
    441,870.40x = 217,853,227,854.24
  5. Step 5: Solve for x
    x = 217,853,227,854.24/441,870.40
  6. Step 6: Final answer
    x = 493,025.17

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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.