Home / 523,619.40-785,540.70-299,087.40

Finding the Fourth Proportional to 523,619.40, 785,540.70 and 299,087.40

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Solution

The fourth proportional to 523,619.40, 785,540.70 and 299,087.40 is: 448,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,619.40 : 785,540.70 = 299,087.40 : x
  2. Step 2: Convert to fraction form
    523,619.40/785,540.70 = 299,087.40/x
  3. Step 3: Cross multiply
    523,619.40x = 785,540.70 × 299,087.40
  4. Step 4: Simplify right side
    523,619.40x = 234,945,325,557.18
  5. Step 5: Solve for x
    x = 234,945,325,557.18/523,619.40
  6. Step 6: Final answer
    x = 448,694.85

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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.