Home / 394,931.58-545,005.62-222,886.20

Finding the Fourth Proportional to 394,931.58, 545,005.62 and 222,886.20

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Solution

The fourth proportional to 394,931.58, 545,005.62 and 222,886.20 is: 307,582.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,931.58 : 545,005.62 = 222,886.20 : x
  2. Step 2: Convert to fraction form
    394,931.58/545,005.62 = 222,886.20/x
  3. Step 3: Cross multiply
    394,931.58x = 545,005.62 × 222,886.20
  4. Step 4: Simplify right side
    394,931.58x = 121,474,231,620.44
  5. Step 5: Solve for x
    x = 121,474,231,620.44/394,931.58
  6. Step 6: Final answer
    x = 307,582.98

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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.