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Finding the Fourth Proportional to 588,329.20, 881,327.40 and 321,612.40

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Solution

The fourth proportional to 588,329.20, 881,327.40 and 321,612.40 is: 481,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,329.20 : 881,327.40 = 321,612.40 : x
  2. Step 2: Convert to fraction form
    588,329.20/881,327.40 = 321,612.40/x
  3. Step 3: Cross multiply
    588,329.20x = 881,327.40 × 321,612.40
  4. Step 4: Simplify right side
    588,329.20x = 283,445,820,299.76
  5. Step 5: Solve for x
    x = 283,445,820,299.76/588,329.20
  6. Step 6: Final answer
    x = 481,780.98

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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.