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Finding the Fourth Proportional to 573,659.52, 791,639.52 and 319,008.48

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Solution

The fourth proportional to 573,659.52, 791,639.52 and 319,008.48 is: 440,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,659.52 : 791,639.52 = 319,008.48 : x
  2. Step 2: Convert to fraction form
    573,659.52/791,639.52 = 319,008.48/x
  3. Step 3: Cross multiply
    573,659.52x = 791,639.52 × 319,008.48
  4. Step 4: Simplify right side
    573,659.52x = 252,539,719,983.13
  5. Step 5: Solve for x
    x = 252,539,719,983.13/573,659.52
  6. Step 6: Final answer
    x = 440,225.80

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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.