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Finding the Fourth Proportional to 664,563.30, 996,844.95 and 664,563.30

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Solution

The fourth proportional to 664,563.30, 996,844.95 and 664,563.30 is: 996,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,563.30 : 996,844.95 = 664,563.30 : x
  2. Step 2: Convert to fraction form
    664,563.30/996,844.95 = 664,563.30/x
  3. Step 3: Cross multiply
    664,563.30x = 996,844.95 × 664,563.30
  4. Step 4: Simplify right side
    664,563.30x = 662,466,569,560.34
  5. Step 5: Solve for x
    x = 662,466,569,560.34/664,563.30
  6. Step 6: Final answer
    x = 996,844.95

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Double scale
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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.