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Finding the Fourth Proportional to 355,581.20, 532,059.60 and 324,088.40

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Solution

The fourth proportional to 355,581.20, 532,059.60 and 324,088.40 is: 484,936.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,581.20 : 532,059.60 = 324,088.40 : x
  2. Step 2: Convert to fraction form
    355,581.20/532,059.60 = 324,088.40/x
  3. Step 3: Cross multiply
    355,581.20x = 532,059.60 × 324,088.40
  4. Step 4: Simplify right side
    355,581.20x = 172,434,344,468.64
  5. Step 5: Solve for x
    x = 172,434,344,468.64/355,581.20
  6. Step 6: Final answer
    x = 484,936.62

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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.