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Finding the Fourth Proportional to 517,256.28, 713,579.22 and 373,789.08

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Solution

The fourth proportional to 517,256.28, 713,579.22 and 373,789.08 is: 515,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,256.28 : 713,579.22 = 373,789.08 : x
  2. Step 2: Convert to fraction form
    517,256.28/713,579.22 = 373,789.08/x
  3. Step 3: Cross multiply
    517,256.28x = 713,579.22 × 373,789.08
  4. Step 4: Simplify right side
    517,256.28x = 266,728,120,150.92
  5. Step 5: Solve for x
    x = 266,728,120,150.92/517,256.28
  6. Step 6: Final answer
    x = 515,659.51

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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.