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Finding the Fourth Proportional to 354,340.06, 488,991.48 and 193,197.78

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Solution

The fourth proportional to 354,340.06, 488,991.48 and 193,197.78 is: 266,614.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,340.06 : 488,991.48 = 193,197.78 : x
  2. Step 2: Convert to fraction form
    354,340.06/488,991.48 = 193,197.78/x
  3. Step 3: Cross multiply
    354,340.06x = 488,991.48 × 193,197.78
  4. Step 4: Simplify right side
    354,340.06x = 94,472,068,374.91
  5. Step 5: Solve for x
    x = 94,472,068,374.91/354,340.06
  6. Step 6: Final answer
    x = 266,614.13

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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.