Home / 644,014.23-888,127.61-469,425.75

Finding the Fourth Proportional to 644,014.23, 888,127.61 and 469,425.75

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Solution

The fourth proportional to 644,014.23, 888,127.61 and 469,425.75 is: 647,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,014.23 : 888,127.61 = 469,425.75 : x
  2. Step 2: Convert to fraction form
    644,014.23/888,127.61 = 469,425.75/x
  3. Step 3: Cross multiply
    644,014.23x = 888,127.61 × 469,425.75
  4. Step 4: Simplify right side
    644,014.23x = 416,909,969,419.96
  5. Step 5: Solve for x
    x = 416,909,969,419.96/644,014.23
  6. Step 6: Final answer
    x = 647,361.42

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.