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Finding the Fourth Proportional to 216,943.20, 325,414.80 and 214,974.90

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Solution

The fourth proportional to 216,943.20, 325,414.80 and 214,974.90 is: 322,462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,943.20 : 325,414.80 = 214,974.90 : x
  2. Step 2: Convert to fraction form
    216,943.20/325,414.80 = 214,974.90/x
  3. Step 3: Cross multiply
    216,943.20x = 325,414.80 × 214,974.90
  4. Step 4: Simplify right side
    216,943.20x = 69,956,014,088.52
  5. Step 5: Solve for x
    x = 69,956,014,088.52/216,943.20
  6. Step 6: Final answer
    x = 322,462.35

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1.5x scale

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.