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Finding the Fourth Proportional to 453,908.10, 680,862.15 and 217,712.10

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Solution

The fourth proportional to 453,908.10, 680,862.15 and 217,712.10 is: 326,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,908.10 : 680,862.15 = 217,712.10 : x
  2. Step 2: Convert to fraction form
    453,908.10/680,862.15 = 217,712.10/x
  3. Step 3: Cross multiply
    453,908.10x = 680,862.15 × 217,712.10
  4. Step 4: Simplify right side
    453,908.10x = 148,231,928,487.02
  5. Step 5: Solve for x
    x = 148,231,928,487.02/453,908.10
  6. Step 6: Final answer
    x = 326,568.15

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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.