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Finding the Fourth Proportional to 664,870.17, 997,305.21 and 166,234.17

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Solution

The fourth proportional to 664,870.17, 997,305.21 and 166,234.17 is: 249,351.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,870.17 : 997,305.21 = 166,234.17 : x
  2. Step 2: Convert to fraction form
    664,870.17/997,305.21 = 166,234.17/x
  3. Step 3: Cross multiply
    664,870.17x = 997,305.21 × 166,234.17
  4. Step 4: Simplify right side
    664,870.17x = 165,786,203,821.03
  5. Step 5: Solve for x
    x = 165,786,203,821.03/664,870.17
  6. Step 6: Final answer
    x = 249,351.24

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Half scale
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Double scale
Find fourth proportional to 664,871.17, 997,306.71 and 166,235.17
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.