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Finding the Fourth Proportional to 338,778.90, 467,717.58 and 211,626.72

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Solution

The fourth proportional to 338,778.90, 467,717.58 and 211,626.72 is: 292,171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,778.90 : 467,717.58 = 211,626.72 : x
  2. Step 2: Convert to fraction form
    338,778.90/467,717.58 = 211,626.72/x
  3. Step 3: Cross multiply
    338,778.90x = 467,717.58 × 211,626.72
  4. Step 4: Simplify right side
    338,778.90x = 98,981,537,341.74
  5. Step 5: Solve for x
    x = 98,981,537,341.74/338,778.90
  6. Step 6: Final answer
    x = 292,171.49

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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.