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Finding the Fourth Proportional to 465,881.80, 699,341.10 and 255,929.80

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Solution

The fourth proportional to 465,881.80, 699,341.10 and 255,929.80 is: 384,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,881.80 : 699,341.10 = 255,929.80 : x
  2. Step 2: Convert to fraction form
    465,881.80/699,341.10 = 255,929.80/x
  3. Step 3: Cross multiply
    465,881.80x = 699,341.10 × 255,929.80
  4. Step 4: Simplify right side
    465,881.80x = 178,982,227,854.78
  5. Step 5: Solve for x
    x = 178,982,227,854.78/465,881.80
  6. Step 6: Final answer
    x = 384,179.48

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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.