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Finding the Fourth Proportional to 557,905.26, 836,850.60 and 137,184.78

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Solution

The fourth proportional to 557,905.26, 836,850.60 and 137,184.78 is: 205,775.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,905.26 : 836,850.60 = 137,184.78 : x
  2. Step 2: Convert to fraction form
    557,905.26/836,850.60 = 137,184.78/x
  3. Step 3: Cross multiply
    557,905.26x = 836,850.60 × 137,184.78
  4. Step 4: Simplify right side
    557,905.26x = 114,803,165,453.87
  5. Step 5: Solve for x
    x = 114,803,165,453.87/557,905.26
  6. Step 6: Final answer
    x = 205,775.38

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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.