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Finding the Fourth Proportional to 573,804.10, 791,847.55 and 319,155.29

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Solution

The fourth proportional to 573,804.10, 791,847.55 and 319,155.29 is: 440,433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,804.10 : 791,847.55 = 319,155.29 : x
  2. Step 2: Convert to fraction form
    573,804.10/791,847.55 = 319,155.29/x
  3. Step 3: Cross multiply
    573,804.10x = 791,847.55 × 319,155.29
  4. Step 4: Simplify right side
    573,804.10x = 252,722,332,069.93
  5. Step 5: Solve for x
    x = 252,722,332,069.93/573,804.10
  6. Step 6: Final answer
    x = 440,433.12

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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.