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Finding the Fourth Proportional to 664,866.18, 997,299.27 and 166,230.18

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Solution

The fourth proportional to 664,866.18, 997,299.27 and 166,230.18 is: 249,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,866.18 : 997,299.27 = 166,230.18 : x
  2. Step 2: Convert to fraction form
    664,866.18/997,299.27 = 166,230.18/x
  3. Step 3: Cross multiply
    664,866.18x = 997,299.27 × 166,230.18
  4. Step 4: Simplify right side
    664,866.18x = 165,781,237,165.97
  5. Step 5: Solve for x
    x = 165,781,237,165.97/664,866.18
  6. Step 6: Final answer
    x = 249,345.27

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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.