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Finding the Fourth Proportional to 750,793.60, 1,126,356.64 and 413,660.64

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Solution

The fourth proportional to 750,793.60, 1,126,356.64 and 413,660.64 is: 620,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,793.60 : 1,126,356.64 = 413,660.64 : x
  2. Step 2: Convert to fraction form
    750,793.60/1,126,356.64 = 413,660.64/x
  3. Step 3: Cross multiply
    750,793.60x = 1,126,356.64 × 413,660.64
  4. Step 4: Simplify right side
    750,793.60x = 465,929,408,570.65
  5. Step 5: Solve for x
    x = 465,929,408,570.65/750,793.60
  6. Step 6: Final answer
    x = 620,582.55

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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.