Home / 440,816.40-661,570.20-204,188.40

Finding the Fourth Proportional to 440,816.40, 661,570.20 and 204,188.40

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Solution

The fourth proportional to 440,816.40, 661,570.20 and 204,188.40 is: 306,442.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,816.40 : 661,570.20 = 204,188.40 : x
  2. Step 2: Convert to fraction form
    440,816.40/661,570.20 = 204,188.40/x
  3. Step 3: Cross multiply
    440,816.40x = 661,570.20 × 204,188.40
  4. Step 4: Simplify right side
    440,816.40x = 135,084,960,625.68
  5. Step 5: Solve for x
    x = 135,084,960,625.68/440,816.40
  6. Step 6: Final answer
    x = 306,442.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.