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Finding the Fourth Proportional to 502,446.60, 753,669.90 and 186,838.20

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Solution

The fourth proportional to 502,446.60, 753,669.90 and 186,838.20 is: 280,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,446.60 : 753,669.90 = 186,838.20 : x
  2. Step 2: Convert to fraction form
    502,446.60/753,669.90 = 186,838.20/x
  3. Step 3: Cross multiply
    502,446.60x = 753,669.90 × 186,838.20
  4. Step 4: Simplify right side
    502,446.60x = 140,814,327,510.18
  5. Step 5: Solve for x
    x = 140,814,327,510.18/502,446.60
  6. Step 6: Final answer
    x = 280,257.30

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Similar ratio
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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.