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Finding the Fourth Proportional to 292,793.40, 439,190.10 and 263,268.90

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Solution

The fourth proportional to 292,793.40, 439,190.10 and 263,268.90 is: 394,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,793.40 : 439,190.10 = 263,268.90 : x
  2. Step 2: Convert to fraction form
    292,793.40/439,190.10 = 263,268.90/x
  3. Step 3: Cross multiply
    292,793.40x = 439,190.10 × 263,268.90
  4. Step 4: Simplify right side
    292,793.40x = 115,625,094,517.89
  5. Step 5: Solve for x
    x = 115,625,094,517.89/292,793.40
  6. Step 6: Final answer
    x = 394,903.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.