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Finding the Fourth Proportional to 542,435.58, 748,605.30 and 300,793.92

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Solution

The fourth proportional to 542,435.58, 748,605.30 and 300,793.92 is: 415,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,435.58 : 748,605.30 = 300,793.92 : x
  2. Step 2: Convert to fraction form
    542,435.58/748,605.30 = 300,793.92/x
  3. Step 3: Cross multiply
    542,435.58x = 748,605.30 × 300,793.92
  4. Step 4: Simplify right side
    542,435.58x = 225,175,922,719.78
  5. Step 5: Solve for x
    x = 225,175,922,719.78/542,435.58
  6. Step 6: Final answer
    x = 415,120.12

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1.5x scale

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.