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Finding the Fourth Proportional to 354,932.20, 532,244.70 and 144,500.20

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Solution

The fourth proportional to 354,932.20, 532,244.70 and 144,500.20 is: 216,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,932.20 : 532,244.70 = 144,500.20 : x
  2. Step 2: Convert to fraction form
    354,932.20/532,244.70 = 144,500.20/x
  3. Step 3: Cross multiply
    354,932.20x = 532,244.70 × 144,500.20
  4. Step 4: Simplify right side
    354,932.20x = 76,909,465,598.94
  5. Step 5: Solve for x
    x = 76,909,465,598.94/354,932.20
  6. Step 6: Final answer
    x = 216,687.77

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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.