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Finding the Fourth Proportional to 543,841.72, 815,778.66 and 259,562.22

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Solution

The fourth proportional to 543,841.72, 815,778.66 and 259,562.22 is: 389,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,841.72 : 815,778.66 = 259,562.22 : x
  2. Step 2: Convert to fraction form
    543,841.72/815,778.66 = 259,562.22/x
  3. Step 3: Cross multiply
    543,841.72x = 815,778.66 × 259,562.22
  4. Step 4: Simplify right side
    543,841.72x = 211,745,320,018.23
  5. Step 5: Solve for x
    x = 211,745,320,018.23/543,841.72
  6. Step 6: Final answer
    x = 389,351.00

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1.5x scale

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.