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Finding the Fourth Proportional to 440,544.33, 660,143.61 and 327,678.75

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Solution

The fourth proportional to 440,544.33, 660,143.61 and 327,678.75 is: 491,017.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,544.33 : 660,143.61 = 327,678.75 : x
  2. Step 2: Convert to fraction form
    440,544.33/660,143.61 = 327,678.75/x
  3. Step 3: Cross multiply
    440,544.33x = 660,143.61 × 327,678.75
  4. Step 4: Simplify right side
    440,544.33x = 216,315,032,945.29
  5. Step 5: Solve for x
    x = 216,315,032,945.29/440,544.33
  6. Step 6: Final answer
    x = 491,017.63

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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.