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Finding the Fourth Proportional to 665,480.56, 998,220.84 and 166,844.56

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Solution

The fourth proportional to 665,480.56, 998,220.84 and 166,844.56 is: 250,266.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,480.56 : 998,220.84 = 166,844.56 : x
  2. Step 2: Convert to fraction form
    665,480.56/998,220.84 = 166,844.56/x
  3. Step 3: Cross multiply
    665,480.56x = 998,220.84 × 166,844.56
  4. Step 4: Simplify right side
    665,480.56x = 166,547,716,832.63
  5. Step 5: Solve for x
    x = 166,547,716,832.63/665,480.56
  6. Step 6: Final answer
    x = 250,266.84

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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.