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Finding the Fourth Proportional to 299,715.47, 449,562.83 and 75,077.84

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Solution

The fourth proportional to 299,715.47, 449,562.83 and 75,077.84 is: 112,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,715.47 : 449,562.83 = 75,077.84 : x
  2. Step 2: Convert to fraction form
    299,715.47/449,562.83 = 75,077.84/x
  3. Step 3: Cross multiply
    299,715.47x = 449,562.83 × 75,077.84
  4. Step 4: Simplify right side
    299,715.47x = 33,752,206,220.69
  5. Step 5: Solve for x
    x = 33,752,206,220.69/299,715.47
  6. Step 6: Final answer
    x = 112,614.16

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1.5x scale

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.