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Finding the Fourth Proportional to 573,859.42, 791,932.07 and 315,739.75

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Solution

The fourth proportional to 573,859.42, 791,932.07 and 315,739.75 is: 435,724.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,859.42 : 791,932.07 = 315,739.75 : x
  2. Step 2: Convert to fraction form
    573,859.42/791,932.07 = 315,739.75/x
  3. Step 3: Cross multiply
    573,859.42x = 791,932.07 × 315,739.75
  4. Step 4: Simplify right side
    573,859.42x = 250,044,433,798.78
  5. Step 5: Solve for x
    x = 250,044,433,798.78/573,859.42
  6. Step 6: Final answer
    x = 435,724.19

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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.