Home / 437,962.80-656,944.20-394,417.20

Finding the Fourth Proportional to 437,962.80, 656,944.20 and 394,417.20

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Solution

The fourth proportional to 437,962.80, 656,944.20 and 394,417.20 is: 591,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,962.80 : 656,944.20 = 394,417.20 : x
  2. Step 2: Convert to fraction form
    437,962.80/656,944.20 = 394,417.20/x
  3. Step 3: Cross multiply
    437,962.80x = 656,944.20 × 394,417.20
  4. Step 4: Simplify right side
    437,962.80x = 259,110,091,920.24
  5. Step 5: Solve for x
    x = 259,110,091,920.24/437,962.80
  6. Step 6: Final answer
    x = 591,625.80

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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.