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Finding the Fourth Proportional to 386,092.60, 579,311.70 and 175,622.20

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Solution

The fourth proportional to 386,092.60, 579,311.70 and 175,622.20 is: 263,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,092.60 : 579,311.70 = 175,622.20 : x
  2. Step 2: Convert to fraction form
    386,092.60/579,311.70 = 175,622.20/x
  3. Step 3: Cross multiply
    386,092.60x = 579,311.70 × 175,622.20
  4. Step 4: Simplify right side
    386,092.60x = 101,739,995,239.74
  5. Step 5: Solve for x
    x = 101,739,995,239.74/386,092.60
  6. Step 6: Final answer
    x = 263,511.90

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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.