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Finding the Fourth Proportional to 576,062.40, 863,834.40 and 220,958.40

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Solution

The fourth proportional to 576,062.40, 863,834.40 and 220,958.40 is: 331,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,062.40 : 863,834.40 = 220,958.40 : x
  2. Step 2: Convert to fraction form
    576,062.40/863,834.40 = 220,958.40/x
  3. Step 3: Cross multiply
    576,062.40x = 863,834.40 × 220,958.40
  4. Step 4: Simplify right side
    576,062.40x = 190,871,466,888.96
  5. Step 5: Solve for x
    x = 190,871,466,888.96/576,062.40
  6. Step 6: Final answer
    x = 331,338.18

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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.