Home / 579,040.33-868,736.09-279,465.07

Finding the Fourth Proportional to 579,040.33, 868,736.09 and 279,465.07

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Solution

The fourth proportional to 579,040.33, 868,736.09 and 279,465.07 is: 419,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,040.33 : 868,736.09 = 279,465.07 : x
  2. Step 2: Convert to fraction form
    579,040.33/868,736.09 = 279,465.07/x
  3. Step 3: Cross multiply
    579,040.33x = 868,736.09 × 279,465.07
  4. Step 4: Simplify right side
    579,040.33x = 242,781,390,806.05
  5. Step 5: Solve for x
    x = 242,781,390,806.05/579,040.33
  6. Step 6: Final answer
    x = 419,282.35

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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.