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Finding the Fourth Proportional to 573,824.80, 791,874.48 and 319,175.20

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Solution

The fourth proportional to 573,824.80, 791,874.48 and 319,175.20 is: 440,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,824.80 : 791,874.48 = 319,175.20 : x
  2. Step 2: Convert to fraction form
    573,824.80/791,874.48 = 319,175.20/x
  3. Step 3: Cross multiply
    573,824.80x = 791,874.48 × 319,175.20
  4. Step 4: Simplify right side
    573,824.80x = 252,746,695,528.90
  5. Step 5: Solve for x
    x = 252,746,695,528.90/573,824.80
  6. Step 6: Final answer
    x = 440,459.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.