Home / 373,639.41-515,633.76-212,517.66

Finding the Fourth Proportional to 373,639.41, 515,633.76 and 212,517.66

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Solution

The fourth proportional to 373,639.41, 515,633.76 and 212,517.66 is: 293,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,639.41 : 515,633.76 = 212,517.66 : x
  2. Step 2: Convert to fraction form
    373,639.41/515,633.76 = 212,517.66/x
  3. Step 3: Cross multiply
    373,639.41x = 515,633.76 × 212,517.66
  4. Step 4: Simplify right side
    373,639.41x = 109,581,280,092.20
  5. Step 5: Solve for x
    x = 109,581,280,092.20/373,639.41
  6. Step 6: Final answer
    x = 293,280.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.