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Finding the Fourth Proportional to 609,920.70, 914,881.05 and 166,688.70

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Solution

The fourth proportional to 609,920.70, 914,881.05 and 166,688.70 is: 250,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,920.70 : 914,881.05 = 166,688.70 : x
  2. Step 2: Convert to fraction form
    609,920.70/914,881.05 = 166,688.70/x
  3. Step 3: Cross multiply
    609,920.70x = 914,881.05 × 166,688.70
  4. Step 4: Simplify right side
    609,920.70x = 152,500,332,879.14
  5. Step 5: Solve for x
    x = 152,500,332,879.14/609,920.70
  6. Step 6: Final answer
    x = 250,033.05

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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.