Home / 418,830.72-577,987.20-227,844.96

Finding the Fourth Proportional to 418,830.72, 577,987.20 and 227,844.96

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Solution

The fourth proportional to 418,830.72, 577,987.20 and 227,844.96 is: 314,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,830.72 : 577,987.20 = 227,844.96 : x
  2. Step 2: Convert to fraction form
    418,830.72/577,987.20 = 227,844.96/x
  3. Step 3: Cross multiply
    418,830.72x = 577,987.20 × 227,844.96
  4. Step 4: Simplify right side
    418,830.72x = 131,691,470,464.51
  5. Step 5: Solve for x
    x = 131,691,470,464.51/418,830.72
  6. Step 6: Final answer
    x = 314,426.48

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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.