Home / 418,394.20-577,387.52-227,407.56

Finding the Fourth Proportional to 418,394.20, 577,387.52 and 227,407.56

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Solution

The fourth proportional to 418,394.20, 577,387.52 and 227,407.56 is: 313,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,394.20 : 577,387.52 = 227,407.56 : x
  2. Step 2: Convert to fraction form
    418,394.20/577,387.52 = 227,407.56/x
  3. Step 3: Cross multiply
    418,394.20x = 577,387.52 × 227,407.56
  4. Step 4: Simplify right side
    418,394.20x = 131,302,287,097.65
  5. Step 5: Solve for x
    x = 131,302,287,097.65/418,394.20
  6. Step 6: Final answer
    x = 313,824.35

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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.