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Finding the Fourth Proportional to 644,363.10, 966,544.65 and 644,363.10

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Solution

The fourth proportional to 644,363.10, 966,544.65 and 644,363.10 is: 966,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,363.10 : 966,544.65 = 644,363.10 : x
  2. Step 2: Convert to fraction form
    644,363.10/966,544.65 = 644,363.10/x
  3. Step 3: Cross multiply
    644,363.10x = 966,544.65 × 644,363.10
  4. Step 4: Simplify right side
    644,363.10x = 622,805,706,962.42
  5. Step 5: Solve for x
    x = 622,805,706,962.42/644,363.10
  6. Step 6: Final answer
    x = 966,544.65

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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.