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Finding the Fourth Proportional to 371,514.94, 557,272.40 and 91,029.76

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Solution

The fourth proportional to 371,514.94, 557,272.40 and 91,029.76 is: 136,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,514.94 : 557,272.40 = 91,029.76 : x
  2. Step 2: Convert to fraction form
    371,514.94/557,272.40 = 91,029.76/x
  3. Step 3: Cross multiply
    371,514.94x = 557,272.40 × 91,029.76
  4. Step 4: Simplify right side
    371,514.94x = 50,728,372,826.62
  5. Step 5: Solve for x
    x = 50,728,372,826.62/371,514.94
  6. Step 6: Final answer
    x = 136,544.64

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Double scale
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Similar ratio
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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.