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Finding the Fourth Proportional to 542,809.62, 748,987.56 and 301,053.78

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Solution

The fourth proportional to 542,809.62, 748,987.56 and 301,053.78 is: 415,404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,809.62 : 748,987.56 = 301,053.78 : x
  2. Step 2: Convert to fraction form
    542,809.62/748,987.56 = 301,053.78/x
  3. Step 3: Cross multiply
    542,809.62x = 748,987.56 × 301,053.78
  4. Step 4: Simplify right side
    542,809.62x = 225,485,536,110.98
  5. Step 5: Solve for x
    x = 225,485,536,110.98/542,809.62
  6. Step 6: Final answer
    x = 415,404.46

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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.