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Finding the Fourth Proportional to 573,612.43, 791,552.64 and 318,958.15

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Solution

The fourth proportional to 573,612.43, 791,552.64 and 318,958.15 is: 440,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,612.43 : 791,552.64 = 318,958.15 : x
  2. Step 2: Convert to fraction form
    573,612.43/791,552.64 = 318,958.15/x
  3. Step 3: Cross multiply
    573,612.43x = 791,552.64 × 318,958.15
  4. Step 4: Simplify right side
    573,612.43x = 252,472,165,682.02
  5. Step 5: Solve for x
    x = 252,472,165,682.02/573,612.43
  6. Step 6: Final answer
    x = 440,144.17

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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.