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Finding the Fourth Proportional to 452,782.89, 679,486.31 and 186,543.81

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Solution

The fourth proportional to 452,782.89, 679,486.31 and 186,543.81 is: 279,944.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,782.89 : 679,486.31 = 186,543.81 : x
  2. Step 2: Convert to fraction form
    452,782.89/679,486.31 = 186,543.81/x
  3. Step 3: Cross multiply
    452,782.89x = 679,486.31 × 186,543.81
  4. Step 4: Simplify right side
    452,782.89x = 126,753,964,177.52
  5. Step 5: Solve for x
    x = 126,753,964,177.52/452,782.89
  6. Step 6: Final answer
    x = 279,944.24

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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.