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Finding the Fourth Proportional to 478,733.79, 718,022.91 and 226,013.79

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Solution

The fourth proportional to 478,733.79, 718,022.91 and 226,013.79 is: 338,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,733.79 : 718,022.91 = 226,013.79 : x
  2. Step 2: Convert to fraction form
    478,733.79/718,022.91 = 226,013.79/x
  3. Step 3: Cross multiply
    478,733.79x = 718,022.91 × 226,013.79
  4. Step 4: Simplify right side
    478,733.79x = 162,283,079,195.93
  5. Step 5: Solve for x
    x = 162,283,079,195.93/478,733.79
  6. Step 6: Final answer
    x = 338,983.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.