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Finding the Fourth Proportional to 418,047.25, 576,908.25 and 227,060.69

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Solution

The fourth proportional to 418,047.25, 576,908.25 and 227,060.69 is: 313,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,047.25 : 576,908.25 = 227,060.69 : x
  2. Step 2: Convert to fraction form
    418,047.25/576,908.25 = 227,060.69/x
  3. Step 3: Cross multiply
    418,047.25x = 576,908.25 × 227,060.69
  4. Step 4: Simplify right side
    418,047.25x = 130,993,185,311.69
  5. Step 5: Solve for x
    x = 130,993,185,311.69/418,047.25
  6. Step 6: Final answer
    x = 313,345.41

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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.