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Finding the Fourth Proportional to 354,184.28, 488,784.69 and 193,049.78

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Solution

The fourth proportional to 354,184.28, 488,784.69 and 193,049.78 is: 266,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,184.28 : 488,784.69 = 193,049.78 : x
  2. Step 2: Convert to fraction form
    354,184.28/488,784.69 = 193,049.78/x
  3. Step 3: Cross multiply
    354,184.28x = 488,784.69 × 193,049.78
  4. Step 4: Simplify right side
    354,184.28x = 94,359,776,871.87
  5. Step 5: Solve for x
    x = 94,359,776,871.87/354,184.28
  6. Step 6: Final answer
    x = 266,414.36

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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.