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Finding the Fourth Proportional to 578,926.44, 868,731.48 and 322,974

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Solution

The fourth proportional to 578,926.44, 868,731.48 and 322,974 is: 484,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,926.44 : 868,731.48 = 322,974 : x
  2. Step 2: Convert to fraction form
    578,926.44/868,731.48 = 322,974/x
  3. Step 3: Cross multiply
    578,926.44x = 868,731.48 × 322,974
  4. Step 4: Simplify right side
    578,926.44x = 280,577,681,021.52
  5. Step 5: Solve for x
    x = 280,577,681,021.52/578,926.44
  6. Step 6: Final answer
    x = 484,651.70

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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.