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Finding the Fourth Proportional to 360,143.92, 497,003.04 and 198,997.56

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Solution

The fourth proportional to 360,143.92, 497,003.04 and 198,997.56 is: 274,619.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,143.92 : 497,003.04 = 198,997.56 : x
  2. Step 2: Convert to fraction form
    360,143.92/497,003.04 = 198,997.56/x
  3. Step 3: Cross multiply
    360,143.92x = 497,003.04 × 198,997.56
  4. Step 4: Simplify right side
    360,143.92x = 98,902,392,272.58
  5. Step 5: Solve for x
    x = 98,902,392,272.58/360,143.92
  6. Step 6: Final answer
    x = 274,619.08

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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.