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Finding the Fourth Proportional to 644,846.69, 888,950.53 and 450,651.47

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Solution

The fourth proportional to 644,846.69, 888,950.53 and 450,651.47 is: 621,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,846.69 : 888,950.53 = 450,651.47 : x
  2. Step 2: Convert to fraction form
    644,846.69/888,950.53 = 450,651.47/x
  3. Step 3: Cross multiply
    644,846.69x = 888,950.53 × 450,651.47
  4. Step 4: Simplify right side
    644,846.69x = 400,606,863,101.78
  5. Step 5: Solve for x
    x = 400,606,863,101.78/644,846.69
  6. Step 6: Final answer
    x = 621,243.58

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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.