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Finding the Fourth Proportional to 502,472.40, 753,622.20 and 186,766.80

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Solution

The fourth proportional to 502,472.40, 753,622.20 and 186,766.80 is: 280,118.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,472.40 : 753,622.20 = 186,766.80 : x
  2. Step 2: Convert to fraction form
    502,472.40/753,622.20 = 186,766.80/x
  3. Step 3: Cross multiply
    502,472.40x = 753,622.20 × 186,766.80
  4. Step 4: Simplify right side
    502,472.40x = 140,751,606,702.96
  5. Step 5: Solve for x
    x = 140,751,606,702.96/502,472.40
  6. Step 6: Final answer
    x = 280,118.09

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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.