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Finding the Fourth Proportional to 573,769.92, 791,832.33 and 319,120.50

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Solution

The fourth proportional to 573,769.92, 791,832.33 and 319,120.50 is: 440,402.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,769.92 : 791,832.33 = 319,120.50 : x
  2. Step 2: Convert to fraction form
    573,769.92/791,832.33 = 319,120.50/x
  3. Step 3: Cross multiply
    573,769.92x = 791,832.33 × 319,120.50
  4. Step 4: Simplify right side
    573,769.92x = 252,689,929,065.77
  5. Step 5: Solve for x
    x = 252,689,929,065.77/573,769.92
  6. Step 6: Final answer
    x = 440,402.89

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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.