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Finding the Fourth Proportional to 573,253.98, 791,084.78 and 318,599.70

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Solution

The fourth proportional to 573,253.98, 791,084.78 and 318,599.70 is: 439,664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,253.98 : 791,084.78 = 318,599.70 : x
  2. Step 2: Convert to fraction form
    573,253.98/791,084.78 = 318,599.70/x
  3. Step 3: Cross multiply
    573,253.98x = 791,084.78 × 318,599.70
  4. Step 4: Simplify right side
    573,253.98x = 252,039,373,582.57
  5. Step 5: Solve for x
    x = 252,039,373,582.57/573,253.98
  6. Step 6: Final answer
    x = 439,664.41

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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.