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Finding the Fourth Proportional to 357,490.97, 493,343.48 and 196,360.91

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Solution

The fourth proportional to 357,490.97, 493,343.48 and 196,360.91 is: 270,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,490.97 : 493,343.48 = 196,360.91 : x
  2. Step 2: Convert to fraction form
    357,490.97/493,343.48 = 196,360.91/x
  3. Step 3: Cross multiply
    357,490.97x = 493,343.48 × 196,360.91
  4. Step 4: Simplify right side
    357,490.97x = 96,873,373,693.56
  5. Step 5: Solve for x
    x = 96,873,373,693.56/357,490.97
  6. Step 6: Final answer
    x = 270,981.32

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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.