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Finding the Fourth Proportional to 573,613.43, 791,554.02 and 318,959.15

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Solution

The fourth proportional to 573,613.43, 791,554.02 and 318,959.15 is: 440,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,613.43 : 791,554.02 = 318,959.15 : x
  2. Step 2: Convert to fraction form
    573,613.43/791,554.02 = 318,959.15/x
  3. Step 3: Cross multiply
    573,613.43x = 791,554.02 × 318,959.15
  4. Step 4: Simplify right side
    573,613.43x = 252,473,397,398.28
  5. Step 5: Solve for x
    x = 252,473,397,398.28/573,613.43
  6. Step 6: Final answer
    x = 440,145.55

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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.