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Finding the Fourth Proportional to 354,158.86, 488,724.96 and 193,010.44

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Solution

The fourth proportional to 354,158.86, 488,724.96 and 193,010.44 is: 266,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,158.86 : 488,724.96 = 193,010.44 : x
  2. Step 2: Convert to fraction form
    354,158.86/488,724.96 = 193,010.44/x
  3. Step 3: Cross multiply
    354,158.86x = 488,724.96 × 193,010.44
  4. Step 4: Simplify right side
    354,158.86x = 94,329,019,568.58
  5. Step 5: Solve for x
    x = 94,329,019,568.58/354,158.86
  6. Step 6: Final answer
    x = 266,346.63

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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.