Home / 418,721.85-577,843.47-227,736.54

Finding the Fourth Proportional to 418,721.85, 577,843.47 and 227,736.54

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Solution

The fourth proportional to 418,721.85, 577,843.47 and 227,736.54 is: 314,280.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,721.85 : 577,843.47 = 227,736.54 : x
  2. Step 2: Convert to fraction form
    418,721.85/577,843.47 = 227,736.54/x
  3. Step 3: Cross multiply
    418,721.85x = 577,843.47 × 227,736.54
  4. Step 4: Simplify right side
    418,721.85x = 131,596,072,519.39
  5. Step 5: Solve for x
    x = 131,596,072,519.39/418,721.85
  6. Step 6: Final answer
    x = 314,280.40

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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.