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Finding the Fourth Proportional to 610,467.40, 916,029.15 and 255,517.30

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Solution

The fourth proportional to 610,467.40, 916,029.15 and 255,517.30 is: 383,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,467.40 : 916,029.15 = 255,517.30 : x
  2. Step 2: Convert to fraction form
    610,467.40/916,029.15 = 255,517.30/x
  3. Step 3: Cross multiply
    610,467.40x = 916,029.15 × 255,517.30
  4. Step 4: Simplify right side
    610,467.40x = 234,061,295,129.30
  5. Step 5: Solve for x
    x = 234,061,295,129.30/610,467.40
  6. Step 6: Final answer
    x = 383,413.26

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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.