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Finding the Fourth Proportional to 361,124.74, 498,351.70 and 199,979.60

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Solution

The fourth proportional to 361,124.74, 498,351.70 and 199,979.60 is: 275,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,124.74 : 498,351.70 = 199,979.60 : x
  2. Step 2: Convert to fraction form
    361,124.74/498,351.70 = 199,979.60/x
  3. Step 3: Cross multiply
    361,124.74x = 498,351.70 × 199,979.60
  4. Step 4: Simplify right side
    361,124.74x = 99,660,170,133.66
  5. Step 5: Solve for x
    x = 99,660,170,133.66/361,124.74
  6. Step 6: Final answer
    x = 275,971.59

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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.