Home / 415,116.80-622,982.40-165,977.60

Finding the Fourth Proportional to 415,116.80, 622,982.40 and 165,977.60

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Solution

The fourth proportional to 415,116.80, 622,982.40 and 165,977.60 is: 249,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,116.80 : 622,982.40 = 165,977.60 : x
  2. Step 2: Convert to fraction form
    415,116.80/622,982.40 = 165,977.60/x
  3. Step 3: Cross multiply
    415,116.80x = 622,982.40 × 165,977.60
  4. Step 4: Simplify right side
    415,116.80x = 103,401,123,594.24
  5. Step 5: Solve for x
    x = 103,401,123,594.24/415,116.80
  6. Step 6: Final answer
    x = 249,089.23

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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.