Home / 460,028.40-690,301.80-179,509.20

Finding the Fourth Proportional to 460,028.40, 690,301.80 and 179,509.20

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Solution

The fourth proportional to 460,028.40, 690,301.80 and 179,509.20 is: 269,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,028.40 : 690,301.80 = 179,509.20 : x
  2. Step 2: Convert to fraction form
    460,028.40/690,301.80 = 179,509.20/x
  3. Step 3: Cross multiply
    460,028.40x = 690,301.80 × 179,509.20
  4. Step 4: Simplify right side
    460,028.40x = 123,915,523,876.56
  5. Step 5: Solve for x
    x = 123,915,523,876.56/460,028.40
  6. Step 6: Final answer
    x = 269,364.94

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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.