Home / 669,755.40-1,004,633.10-171,119.40

Finding the Fourth Proportional to 669,755.40, 1,004,633.10 and 171,119.40

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Solution

The fourth proportional to 669,755.40, 1,004,633.10 and 171,119.40 is: 256,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,755.40 : 1,004,633.10 = 171,119.40 : x
  2. Step 2: Convert to fraction form
    669,755.40/1,004,633.10 = 171,119.40/x
  3. Step 3: Cross multiply
    669,755.40x = 1,004,633.10 × 171,119.40
  4. Step 4: Simplify right side
    669,755.40x = 171,912,213,292.14
  5. Step 5: Solve for x
    x = 171,912,213,292.14/669,755.40
  6. Step 6: Final answer
    x = 256,679.10

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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.