Home / 591,719.80-887,579.70-259,943.80

Finding the Fourth Proportional to 591,719.80, 887,579.70 and 259,943.80

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Solution

The fourth proportional to 591,719.80, 887,579.70 and 259,943.80 is: 389,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,719.80 : 887,579.70 = 259,943.80 : x
  2. Step 2: Convert to fraction form
    591,719.80/887,579.70 = 259,943.80/x
  3. Step 3: Cross multiply
    591,719.80x = 887,579.70 × 259,943.80
  4. Step 4: Simplify right side
    591,719.80x = 230,720,840,020.86
  5. Step 5: Solve for x
    x = 230,720,840,020.86/591,719.80
  6. Step 6: Final answer
    x = 389,915.70

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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.