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Finding the Fourth Proportional to 576,046.40, 863,810.40 and 220,942.40

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Solution

The fourth proportional to 576,046.40, 863,810.40 and 220,942.40 is: 331,314.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,046.40 : 863,810.40 = 220,942.40 : x
  2. Step 2: Convert to fraction form
    576,046.40/863,810.40 = 220,942.40/x
  3. Step 3: Cross multiply
    576,046.40x = 863,810.40 × 220,942.40
  4. Step 4: Simplify right side
    576,046.40x = 190,852,342,920.96
  5. Step 5: Solve for x
    x = 190,852,342,920.96/576,046.40
  6. Step 6: Final answer
    x = 331,314.18

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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.