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Finding the Fourth Proportional to 358,995.92, 495,498.80 and 223,132.48

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Solution

The fourth proportional to 358,995.92, 495,498.80 and 223,132.48 is: 307,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,995.92 : 495,498.80 = 223,132.48 : x
  2. Step 2: Convert to fraction form
    358,995.92/495,498.80 = 223,132.48/x
  3. Step 3: Cross multiply
    358,995.92x = 495,498.80 × 223,132.48
  4. Step 4: Simplify right side
    358,995.92x = 110,561,873,726.62
  5. Step 5: Solve for x
    x = 110,561,873,726.62/358,995.92
  6. Step 6: Final answer
    x = 307,975.29

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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.