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Finding the Fourth Proportional to 324,917.66, 487,377.86 and 213,304.12

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Solution

The fourth proportional to 324,917.66, 487,377.86 and 213,304.12 is: 319,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,917.66 : 487,377.86 = 213,304.12 : x
  2. Step 2: Convert to fraction form
    324,917.66/487,377.86 = 213,304.12/x
  3. Step 3: Cross multiply
    324,917.66x = 487,377.86 × 213,304.12
  4. Step 4: Simplify right side
    324,917.66x = 103,959,703,249.82
  5. Step 5: Solve for x
    x = 103,959,703,249.82/324,917.66
  6. Step 6: Final answer
    x = 319,957.07

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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.