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Finding the Fourth Proportional to 557,907.26, 836,853.60 and 137,186.78

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Solution

The fourth proportional to 557,907.26, 836,853.60 and 137,186.78 is: 205,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,907.26 : 836,853.60 = 137,186.78 : x
  2. Step 2: Convert to fraction form
    557,907.26/836,853.60 = 137,186.78/x
  3. Step 3: Cross multiply
    557,907.26x = 836,853.60 × 137,186.78
  4. Step 4: Simplify right side
    557,907.26x = 114,805,250,715.41
  5. Step 5: Solve for x
    x = 114,805,250,715.41/557,907.26
  6. Step 6: Final answer
    x = 205,778.38

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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.