Home / 320,581.92-442,419.20-193,298.56

Finding the Fourth Proportional to 320,581.92, 442,419.20 and 193,298.56

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Solution

The fourth proportional to 320,581.92, 442,419.20 and 193,298.56 is: 266,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,581.92 : 442,419.20 = 193,298.56 : x
  2. Step 2: Convert to fraction form
    320,581.92/442,419.20 = 193,298.56/x
  3. Step 3: Cross multiply
    320,581.92x = 442,419.20 × 193,298.56
  4. Step 4: Simplify right side
    320,581.92x = 85,518,994,276.35
  5. Step 5: Solve for x
    x = 85,518,994,276.35/320,581.92
  6. Step 6: Final answer
    x = 266,761.75

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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.