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Finding the Fourth Proportional to 376,807.60, 566,523.60 and 319,070.80

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Solution

The fourth proportional to 376,807.60, 566,523.60 and 319,070.80 is: 479,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,807.60 : 566,523.60 = 319,070.80 : x
  2. Step 2: Convert to fraction form
    376,807.60/566,523.60 = 319,070.80/x
  3. Step 3: Cross multiply
    376,807.60x = 566,523.60 × 319,070.80
  4. Step 4: Simplify right side
    376,807.60x = 180,761,138,270.88
  5. Step 5: Solve for x
    x = 180,761,138,270.88/376,807.60
  6. Step 6: Final answer
    x = 479,717.34

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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.