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Finding the Fourth Proportional to 534,620.80, 802,147.20 and 235,158.40

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Solution

The fourth proportional to 534,620.80, 802,147.20 and 235,158.40 is: 352,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,620.80 : 802,147.20 = 235,158.40 : x
  2. Step 2: Convert to fraction form
    534,620.80/802,147.20 = 235,158.40/x
  3. Step 3: Cross multiply
    534,620.80x = 802,147.20 × 235,158.40
  4. Step 4: Simplify right side
    534,620.80x = 188,631,652,116.48
  5. Step 5: Solve for x
    x = 188,631,652,116.48/534,620.80
  6. Step 6: Final answer
    x = 352,832.61

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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.