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Finding the Fourth Proportional to 478,193.04, 717,401.88 and 267,976.08

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Solution

The fourth proportional to 478,193.04, 717,401.88 and 267,976.08 is: 402,027.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,193.04 : 717,401.88 = 267,976.08 : x
  2. Step 2: Convert to fraction form
    478,193.04/717,401.88 = 267,976.08/x
  3. Step 3: Cross multiply
    478,193.04x = 717,401.88 × 267,976.08
  4. Step 4: Simplify right side
    478,193.04x = 192,246,543,587.03
  5. Step 5: Solve for x
    x = 192,246,543,587.03/478,193.04
  6. Step 6: Final answer
    x = 402,027.06

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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.