Home / 644,813.11-888,904.24-450,617.91

Finding the Fourth Proportional to 644,813.11, 888,904.24 and 450,617.91

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Solution

The fourth proportional to 644,813.11, 888,904.24 and 450,617.91 is: 621,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,813.11 : 888,904.24 = 450,617.91 : x
  2. Step 2: Convert to fraction form
    644,813.11/888,904.24 = 450,617.91/x
  3. Step 3: Cross multiply
    644,813.11x = 888,904.24 × 450,617.91
  4. Step 4: Simplify right side
    644,813.11x = 400,556,170,818.94
  5. Step 5: Solve for x
    x = 400,556,170,818.94/644,813.11
  6. Step 6: Final answer
    x = 621,197.31

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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.