Home / 476,623.06-715,055.61-220,640.18

Finding the Fourth Proportional to 476,623.06, 715,055.61 and 220,640.18

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Solution

The fourth proportional to 476,623.06, 715,055.61 and 220,640.18 is: 331,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,623.06 : 715,055.61 = 220,640.18 : x
  2. Step 2: Convert to fraction form
    476,623.06/715,055.61 = 220,640.18/x
  3. Step 3: Cross multiply
    476,623.06x = 715,055.61 × 220,640.18
  4. Step 4: Simplify right side
    476,623.06x = 157,769,998,500.41
  5. Step 5: Solve for x
    x = 157,769,998,500.41/476,623.06
  6. Step 6: Final answer
    x = 331,016.29

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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.