Home / 409,989.60-565,558.20-240,190.92

Finding the Fourth Proportional to 409,989.60, 565,558.20 and 240,190.92

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Solution

The fourth proportional to 409,989.60, 565,558.20 and 240,190.92 is: 331,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,989.60 : 565,558.20 = 240,190.92 : x
  2. Step 2: Convert to fraction form
    409,989.60/565,558.20 = 240,190.92/x
  3. Step 3: Cross multiply
    409,989.60x = 565,558.20 × 240,190.92
  4. Step 4: Simplify right side
    409,989.60x = 135,841,944,371.54
  5. Step 5: Solve for x
    x = 135,841,944,371.54/409,989.60
  6. Step 6: Final answer
    x = 331,330.22

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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.