Home / 320,660.37-442,508.47-191,591.83

Finding the Fourth Proportional to 320,660.37, 442,508.47 and 191,591.83

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Solution

The fourth proportional to 320,660.37, 442,508.47 and 191,591.83 is: 264,395.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,660.37 : 442,508.47 = 191,591.83 : x
  2. Step 2: Convert to fraction form
    320,660.37/442,508.47 = 191,591.83/x
  3. Step 3: Cross multiply
    320,660.37x = 442,508.47 × 191,591.83
  4. Step 4: Simplify right side
    320,660.37x = 84,781,007,631.96
  5. Step 5: Solve for x
    x = 84,781,007,631.96/320,660.37
  6. Step 6: Final answer
    x = 264,395.03

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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.