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Finding the Fourth Proportional to 573,698.82, 791,693.12 and 319,044.54

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Solution

The fourth proportional to 573,698.82, 791,693.12 and 319,044.54 is: 440,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,698.82 : 791,693.12 = 319,044.54 : x
  2. Step 2: Convert to fraction form
    573,698.82/791,693.12 = 319,044.54/x
  3. Step 3: Cross multiply
    573,698.82x = 791,693.12 × 319,044.54
  4. Step 4: Simplify right side
    573,698.82x = 252,585,367,291.57
  5. Step 5: Solve for x
    x = 252,585,367,291.57/573,698.82
  6. Step 6: Final answer
    x = 440,275.21

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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.