Home / 418,131.68-577,018.53-227,146.43

Finding the Fourth Proportional to 418,131.68, 577,018.53 and 227,146.43

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Solution

The fourth proportional to 418,131.68, 577,018.53 and 227,146.43 is: 313,460.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,131.68 : 577,018.53 = 227,146.43 : x
  2. Step 2: Convert to fraction form
    418,131.68/577,018.53 = 227,146.43/x
  3. Step 3: Cross multiply
    418,131.68x = 577,018.53 × 227,146.43
  4. Step 4: Simplify right side
    418,131.68x = 131,067,696,248.26
  5. Step 5: Solve for x
    x = 131,067,696,248.26/418,131.68
  6. Step 6: Final answer
    x = 313,460.34

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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.