Home / 754,087.29-1,040,633.07-409,902.75

Finding the Fourth Proportional to 754,087.29, 1,040,633.07 and 409,902.75

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Solution

The fourth proportional to 754,087.29, 1,040,633.07 and 409,902.75 is: 565,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,087.29 : 1,040,633.07 = 409,902.75 : x
  2. Step 2: Convert to fraction form
    754,087.29/1,040,633.07 = 409,902.75/x
  3. Step 3: Cross multiply
    754,087.29x = 1,040,633.07 × 409,902.75
  4. Step 4: Simplify right side
    754,087.29x = 426,558,351,650.13
  5. Step 5: Solve for x
    x = 426,558,351,650.13/754,087.29
  6. Step 6: Final answer
    x = 565,661.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.