Home / 644,845.44-888,948.81-450,650.22

Finding the Fourth Proportional to 644,845.44, 888,948.81 and 450,650.22

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Solution

The fourth proportional to 644,845.44, 888,948.81 and 450,650.22 is: 621,241.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,845.44 : 888,948.81 = 450,650.22 : x
  2. Step 2: Convert to fraction form
    644,845.44/888,948.81 = 450,650.22/x
  3. Step 3: Cross multiply
    644,845.44x = 888,948.81 × 450,650.22
  4. Step 4: Simplify right side
    644,845.44x = 400,604,976,795.24
  5. Step 5: Solve for x
    x = 400,604,976,795.24/644,845.44
  6. Step 6: Final answer
    x = 621,241.85

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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.