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Finding the Fourth Proportional to 555,793.66, 766,995.96 and 301,144.78

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Solution

The fourth proportional to 555,793.66, 766,995.96 and 301,144.78 is: 415,580.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,793.66 : 766,995.96 = 301,144.78 : x
  2. Step 2: Convert to fraction form
    555,793.66/766,995.96 = 301,144.78/x
  3. Step 3: Cross multiply
    555,793.66x = 766,995.96 × 301,144.78
  4. Step 4: Simplify right side
    555,793.66x = 230,976,829,635.09
  5. Step 5: Solve for x
    x = 230,976,829,635.09/555,793.66
  6. Step 6: Final answer
    x = 415,580.18

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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.