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Finding the Fourth Proportional to 573,550.42, 791,494.78 and 318,899.38

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Solution

The fourth proportional to 573,550.42, 791,494.78 and 318,899.38 is: 440,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,550.42 : 791,494.78 = 318,899.38 : x
  2. Step 2: Convert to fraction form
    573,550.42/791,494.78 = 318,899.38/x
  3. Step 3: Cross multiply
    573,550.42x = 791,494.78 × 318,899.38
  4. Step 4: Simplify right side
    573,550.42x = 252,407,189,063.27
  5. Step 5: Solve for x
    x = 252,407,189,063.27/573,550.42
  6. Step 6: Final answer
    x = 440,078.47

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1.5x scale

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.