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Finding the Fourth Proportional to 581,061.78, 871,855.56 and 296,605.44

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Solution

The fourth proportional to 581,061.78, 871,855.56 and 296,605.44 is: 445,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,061.78 : 871,855.56 = 296,605.44 : x
  2. Step 2: Convert to fraction form
    581,061.78/871,855.56 = 296,605.44/x
  3. Step 3: Cross multiply
    581,061.78x = 871,855.56 × 296,605.44
  4. Step 4: Simplify right side
    581,061.78x = 258,597,101,990.25
  5. Step 5: Solve for x
    x = 258,597,101,990.25/581,061.78
  6. Step 6: Final answer
    x = 445,042.35

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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.