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Finding the Fourth Proportional to 478,947.35, 717,753.78 and 242,013.44

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Solution

The fourth proportional to 478,947.35, 717,753.78 and 242,013.44 is: 362,683.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,947.35 : 717,753.78 = 242,013.44 : x
  2. Step 2: Convert to fraction form
    478,947.35/717,753.78 = 242,013.44/x
  3. Step 3: Cross multiply
    478,947.35x = 717,753.78 × 242,013.44
  4. Step 4: Simplify right side
    478,947.35x = 173,706,057,782.03
  5. Step 5: Solve for x
    x = 173,706,057,782.03/478,947.35
  6. Step 6: Final answer
    x = 362,683.00

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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.