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Finding the Fourth Proportional to 541,765.71, 747,572.59 and 312,398.36

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Solution

The fourth proportional to 541,765.71, 747,572.59 and 312,398.36 is: 431,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,765.71 : 747,572.59 = 312,398.36 : x
  2. Step 2: Convert to fraction form
    541,765.71/747,572.59 = 312,398.36/x
  3. Step 3: Cross multiply
    541,765.71x = 747,572.59 × 312,398.36
  4. Step 4: Simplify right side
    541,765.71x = 233,540,452,184.89
  5. Step 5: Solve for x
    x = 233,540,452,184.89/541,765.71
  6. Step 6: Final answer
    x = 431,072.78

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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.