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Finding the Fourth Proportional to 355,585.20, 532,065.60 and 324,092.40

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Solution

The fourth proportional to 355,585.20, 532,065.60 and 324,092.40 is: 484,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,585.20 : 532,065.60 = 324,092.40 : x
  2. Step 2: Convert to fraction form
    355,585.20/532,065.60 = 324,092.40/x
  3. Step 3: Cross multiply
    355,585.20x = 532,065.60 × 324,092.40
  4. Step 4: Simplify right side
    355,585.20x = 172,438,417,261.44
  5. Step 5: Solve for x
    x = 172,438,417,261.44/355,585.20
  6. Step 6: Final answer
    x = 484,942.62

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1.5x scale

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.