Home / 345,895.41-477,315.11-200,689.95

Finding the Fourth Proportional to 345,895.41, 477,315.11 and 200,689.95

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Solution

The fourth proportional to 345,895.41, 477,315.11 and 200,689.95 is: 276,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,895.41 : 477,315.11 = 200,689.95 : x
  2. Step 2: Convert to fraction form
    345,895.41/477,315.11 = 200,689.95/x
  3. Step 3: Cross multiply
    345,895.41x = 477,315.11 × 200,689.95
  4. Step 4: Simplify right side
    345,895.41x = 95,792,345,560.14
  5. Step 5: Solve for x
    x = 95,792,345,560.14/345,895.41
  6. Step 6: Final answer
    x = 276,940.20

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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.