Home / 638,976.96-958,465.44-195,687.36

Finding the Fourth Proportional to 638,976.96, 958,465.44 and 195,687.36

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Solution

The fourth proportional to 638,976.96, 958,465.44 and 195,687.36 is: 293,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,976.96 : 958,465.44 = 195,687.36 : x
  2. Step 2: Convert to fraction form
    638,976.96/958,465.44 = 195,687.36/x
  3. Step 3: Cross multiply
    638,976.96x = 958,465.44 × 195,687.36
  4. Step 4: Simplify right side
    638,976.96x = 187,559,571,604.84
  5. Step 5: Solve for x
    x = 187,559,571,604.84/638,976.96
  6. Step 6: Final answer
    x = 293,531.04

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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.