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Finding the Fourth Proportional to 262,839.60, 394,259.40 and 157,777.20

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Solution

The fourth proportional to 262,839.60, 394,259.40 and 157,777.20 is: 236,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,839.60 : 394,259.40 = 157,777.20 : x
  2. Step 2: Convert to fraction form
    262,839.60/394,259.40 = 157,777.20/x
  3. Step 3: Cross multiply
    262,839.60x = 394,259.40 × 157,777.20
  4. Step 4: Simplify right side
    262,839.60x = 62,205,144,205.68
  5. Step 5: Solve for x
    x = 62,205,144,205.68/262,839.60
  6. Step 6: Final answer
    x = 236,665.80

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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.