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Finding the Fourth Proportional to 364,285.20, 546,209.10 and 187,138.20

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Solution

The fourth proportional to 364,285.20, 546,209.10 and 187,138.20 is: 280,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,285.20 : 546,209.10 = 187,138.20 : x
  2. Step 2: Convert to fraction form
    364,285.20/546,209.10 = 187,138.20/x
  3. Step 3: Cross multiply
    364,285.20x = 546,209.10 × 187,138.20
  4. Step 4: Simplify right side
    364,285.20x = 102,216,587,797.62
  5. Step 5: Solve for x
    x = 102,216,587,797.62/364,285.20
  6. Step 6: Final answer
    x = 280,594.95

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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.