Home / 395,044.11-545,160.21-222,998.28

Finding the Fourth Proportional to 395,044.11, 545,160.21 and 222,998.28

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Solution

The fourth proportional to 395,044.11, 545,160.21 and 222,998.28 is: 307,737.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,044.11 : 545,160.21 = 222,998.28 : x
  2. Step 2: Convert to fraction form
    395,044.11/545,160.21 = 222,998.28/x
  3. Step 3: Cross multiply
    395,044.11x = 545,160.21 × 222,998.28
  4. Step 4: Simplify right side
    395,044.11x = 121,569,789,154.44
  5. Step 5: Solve for x
    x = 121,569,789,154.44/395,044.11
  6. Step 6: Final answer
    x = 307,737.25

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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.