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Finding the Fourth Proportional to 324,377.51, 486,253.78 and 217,790.62

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Solution

The fourth proportional to 324,377.51, 486,253.78 and 217,790.62 is: 326,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,377.51 : 486,253.78 = 217,790.62 : x
  2. Step 2: Convert to fraction form
    324,377.51/486,253.78 = 217,790.62/x
  3. Step 3: Cross multiply
    324,377.51x = 486,253.78 × 217,790.62
  4. Step 4: Simplify right side
    324,377.51x = 105,901,514,423.68
  5. Step 5: Solve for x
    x = 105,901,514,423.68/324,377.51
  6. Step 6: Final answer
    x = 326,476.13

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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.