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Finding the Fourth Proportional to 402,596.73, 555,584.64 and 230,517.36

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Solution

The fourth proportional to 402,596.73, 555,584.64 and 230,517.36 is: 318,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,596.73 : 555,584.64 = 230,517.36 : x
  2. Step 2: Convert to fraction form
    402,596.73/555,584.64 = 230,517.36/x
  3. Step 3: Cross multiply
    402,596.73x = 555,584.64 × 230,517.36
  4. Step 4: Simplify right side
    402,596.73x = 128,071,904,469.35
  5. Step 5: Solve for x
    x = 128,071,904,469.35/402,596.73
  6. Step 6: Final answer
    x = 318,114.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.