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Finding the Fourth Proportional to 373,311.80, 559,967.70 and 329,766.20

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Solution

The fourth proportional to 373,311.80, 559,967.70 and 329,766.20 is: 494,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,311.80 : 559,967.70 = 329,766.20 : x
  2. Step 2: Convert to fraction form
    373,311.80/559,967.70 = 329,766.20/x
  3. Step 3: Cross multiply
    373,311.80x = 559,967.70 × 329,766.20
  4. Step 4: Simplify right side
    373,311.80x = 184,658,420,551.74
  5. Step 5: Solve for x
    x = 184,658,420,551.74/373,311.80
  6. Step 6: Final answer
    x = 494,649.30

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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.