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Finding the Fourth Proportional to 644,298.32, 966,372.41 and 171,020.46

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Solution

The fourth proportional to 644,298.32, 966,372.41 and 171,020.46 is: 256,510.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,298.32 : 966,372.41 = 171,020.46 : x
  2. Step 2: Convert to fraction form
    644,298.32/966,372.41 = 171,020.46/x
  3. Step 3: Cross multiply
    644,298.32x = 966,372.41 × 171,020.46
  4. Step 4: Simplify right side
    644,298.32x = 165,269,454,089.51
  5. Step 5: Solve for x
    x = 165,269,454,089.51/644,298.32
  6. Step 6: Final answer
    x = 256,510.76

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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.