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Finding the Fourth Proportional to 354,170.18, 488,740.62 and 193,021.77

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Solution

The fourth proportional to 354,170.18, 488,740.62 and 193,021.77 is: 266,362.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,170.18 : 488,740.62 = 193,021.77 : x
  2. Step 2: Convert to fraction form
    354,170.18/488,740.62 = 193,021.77/x
  3. Step 3: Cross multiply
    354,170.18x = 488,740.62 × 193,021.77
  4. Step 4: Simplify right side
    354,170.18x = 94,337,582,099.91
  5. Step 5: Solve for x
    x = 94,337,582,099.91/354,170.18
  6. Step 6: Final answer
    x = 266,362.29

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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.