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Finding the Fourth Proportional to 446,373.53, 669,726.38 and 206,603.84

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Solution

The fourth proportional to 446,373.53, 669,726.38 and 206,603.84 is: 309,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,373.53 : 669,726.38 = 206,603.84 : x
  2. Step 2: Convert to fraction form
    446,373.53/669,726.38 = 206,603.84/x
  3. Step 3: Cross multiply
    446,373.53x = 669,726.38 × 206,603.84
  4. Step 4: Simplify right side
    446,373.53x = 138,368,041,002.37
  5. Step 5: Solve for x
    x = 138,368,041,002.37/446,373.53
  6. Step 6: Final answer
    x = 309,982.63

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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.