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Finding the Fourth Proportional to 322,483.10, 483,724.65 and 247,979.30

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Solution

The fourth proportional to 322,483.10, 483,724.65 and 247,979.30 is: 371,968.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,483.10 : 483,724.65 = 247,979.30 : x
  2. Step 2: Convert to fraction form
    322,483.10/483,724.65 = 247,979.30/x
  3. Step 3: Cross multiply
    322,483.10x = 483,724.65 × 247,979.30
  4. Step 4: Simplify right side
    322,483.10x = 119,953,700,099.75
  5. Step 5: Solve for x
    x = 119,953,700,099.75/322,483.10
  6. Step 6: Final answer
    x = 371,968.95

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Similar ratio
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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.