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Finding the Fourth Proportional to 299,411.30, 448,512.15 and 186,745.70

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Solution

The fourth proportional to 299,411.30, 448,512.15 and 186,745.70 is: 279,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,411.30 : 448,512.15 = 186,745.70 : x
  2. Step 2: Convert to fraction form
    299,411.30/448,512.15 = 186,745.70/x
  3. Step 3: Cross multiply
    299,411.30x = 448,512.15 × 186,745.70
  4. Step 4: Simplify right side
    299,411.30x = 83,757,715,410.26
  5. Step 5: Solve for x
    x = 83,757,715,410.26/299,411.30
  6. Step 6: Final answer
    x = 279,741.33

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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.