Home / 418,219.74-577,148.49-227,236.32

Finding the Fourth Proportional to 418,219.74, 577,148.49 and 227,236.32

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Solution

The fourth proportional to 418,219.74, 577,148.49 and 227,236.32 is: 313,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,219.74 : 577,148.49 = 227,236.32 : x
  2. Step 2: Convert to fraction form
    418,219.74/577,148.49 = 227,236.32/x
  3. Step 3: Cross multiply
    418,219.74x = 577,148.49 × 227,236.32
  4. Step 4: Simplify right side
    418,219.74x = 131,149,098,961.16
  5. Step 5: Solve for x
    x = 131,149,098,961.16/418,219.74
  6. Step 6: Final answer
    x = 313,588.97

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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.