Home / 865,557.30-1,296,003.15-627,611.70

Finding the Fourth Proportional to 865,557.30, 1,296,003.15 and 627,611.70

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Solution

The fourth proportional to 865,557.30, 1,296,003.15 and 627,611.70 is: 939,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,557.30 : 1,296,003.15 = 627,611.70 : x
  2. Step 2: Convert to fraction form
    865,557.30/1,296,003.15 = 627,611.70/x
  3. Step 3: Cross multiply
    865,557.30x = 1,296,003.15 × 627,611.70
  4. Step 4: Simplify right side
    865,557.30x = 813,386,740,176.86
  5. Step 5: Solve for x
    x = 813,386,740,176.86/865,557.30
  6. Step 6: Final answer
    x = 939,726.05

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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.