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Finding the Fourth Proportional to 591,127.88, 815,775.91 and 322,855.88

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Solution

The fourth proportional to 591,127.88, 815,775.91 and 322,855.88 is: 445,551.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,127.88 : 815,775.91 = 322,855.88 : x
  2. Step 2: Convert to fraction form
    591,127.88/815,775.91 = 322,855.88/x
  3. Step 3: Cross multiply
    591,127.88x = 815,775.91 × 322,855.88
  4. Step 4: Simplify right side
    591,127.88x = 263,378,044,419.83
  5. Step 5: Solve for x
    x = 263,378,044,419.83/591,127.88
  6. Step 6: Final answer
    x = 445,551.73

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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.