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Finding the Fourth Proportional to 418,056.38, 576,920.84 and 227,069.82

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Solution

The fourth proportional to 418,056.38, 576,920.84 and 227,069.82 is: 313,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,056.38 : 576,920.84 = 227,069.82 : x
  2. Step 2: Convert to fraction form
    418,056.38/576,920.84 = 227,069.82/x
  3. Step 3: Cross multiply
    418,056.38x = 576,920.84 × 227,069.82
  4. Step 4: Simplify right side
    418,056.38x = 131,001,311,293.05
  5. Step 5: Solve for x
    x = 131,001,311,293.05/418,056.38
  6. Step 6: Final answer
    x = 313,358.00

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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.