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Finding the Fourth Proportional to 291,279.54, 401,276.58 and 277,826.75

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Solution

The fourth proportional to 291,279.54, 401,276.58 and 277,826.75 is: 382,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,279.54 : 401,276.58 = 277,826.75 : x
  2. Step 2: Convert to fraction form
    291,279.54/401,276.58 = 277,826.75/x
  3. Step 3: Cross multiply
    291,279.54x = 401,276.58 × 277,826.75
  4. Step 4: Simplify right side
    291,279.54x = 111,485,366,683.38
  5. Step 5: Solve for x
    x = 111,485,366,683.38/291,279.54
  6. Step 6: Final answer
    x = 382,743.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.