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Finding the Fourth Proportional to 551,908.60, 827,862.90 and 446,932.60

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Solution

The fourth proportional to 551,908.60, 827,862.90 and 446,932.60 is: 670,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,908.60 : 827,862.90 = 446,932.60 : x
  2. Step 2: Convert to fraction form
    551,908.60/827,862.90 = 446,932.60/x
  3. Step 3: Cross multiply
    551,908.60x = 827,862.90 × 446,932.60
  4. Step 4: Simplify right side
    551,908.60x = 369,998,918,340.54
  5. Step 5: Solve for x
    x = 369,998,918,340.54/551,908.60
  6. Step 6: Final answer
    x = 670,398.90

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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.