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Finding the Fourth Proportional to 473,385.60, 709,819.20 and 192,585.60

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Solution

The fourth proportional to 473,385.60, 709,819.20 and 192,585.60 is: 288,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,385.60 : 709,819.20 = 192,585.60 : x
  2. Step 2: Convert to fraction form
    473,385.60/709,819.20 = 192,585.60/x
  3. Step 3: Cross multiply
    473,385.60x = 709,819.20 × 192,585.60
  4. Step 4: Simplify right side
    473,385.60x = 136,700,956,523.52
  5. Step 5: Solve for x
    x = 136,700,956,523.52/473,385.60
  6. Step 6: Final answer
    x = 288,772.95

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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.