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Finding the Fourth Proportional to 354,156.86, 488,722.21 and 193,008.44

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Solution

The fourth proportional to 354,156.86, 488,722.21 and 193,008.44 is: 266,343.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,156.86 : 488,722.21 = 193,008.44 : x
  2. Step 2: Convert to fraction form
    354,156.86/488,722.21 = 193,008.44/x
  3. Step 3: Cross multiply
    354,156.86x = 488,722.21 × 193,008.44
  4. Step 4: Simplify right side
    354,156.86x = 94,327,512,084.74
  5. Step 5: Solve for x
    x = 94,327,512,084.74/354,156.86
  6. Step 6: Final answer
    x = 266,343.88

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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.