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Finding the Fourth Proportional to 299,255.70, 448,883.55 and 133,043.70

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Solution

The fourth proportional to 299,255.70, 448,883.55 and 133,043.70 is: 199,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,255.70 : 448,883.55 = 133,043.70 : x
  2. Step 2: Convert to fraction form
    299,255.70/448,883.55 = 133,043.70/x
  3. Step 3: Cross multiply
    299,255.70x = 448,883.55 × 133,043.70
  4. Step 4: Simplify right side
    299,255.70x = 59,721,128,361.14
  5. Step 5: Solve for x
    x = 59,721,128,361.14/299,255.70
  6. Step 6: Final answer
    x = 199,565.55

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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.