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Finding the Fourth Proportional to 373,979.56, 561,173.46 and 216,515.56

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Solution

The fourth proportional to 373,979.56, 561,173.46 and 216,515.56 is: 324,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,979.56 : 561,173.46 = 216,515.56 : x
  2. Step 2: Convert to fraction form
    373,979.56/561,173.46 = 216,515.56/x
  3. Step 3: Cross multiply
    373,979.56x = 561,173.46 × 216,515.56
  4. Step 4: Simplify right side
    373,979.56x = 121,502,785,949.04
  5. Step 5: Solve for x
    x = 121,502,785,949.04/373,979.56
  6. Step 6: Final answer
    x = 324,891.52

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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.