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Finding the Fourth Proportional to 573,732.88, 791,690.60 and 319,042.96

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Solution

The fourth proportional to 573,732.88, 791,690.60 and 319,042.96 is: 440,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,732.88 : 791,690.60 = 319,042.96 : x
  2. Step 2: Convert to fraction form
    573,732.88/791,690.60 = 319,042.96/x
  3. Step 3: Cross multiply
    573,732.88x = 791,690.60 × 319,042.96
  4. Step 4: Simplify right side
    573,732.88x = 252,583,312,428.18
  5. Step 5: Solve for x
    x = 252,583,312,428.18/573,732.88
  6. Step 6: Final answer
    x = 440,245.49

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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.