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Finding the Fourth Proportional to 516,899.28, 713,216.40 and 301,997.82

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Solution

The fourth proportional to 516,899.28, 713,216.40 and 301,997.82 is: 416,695.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,899.28 : 713,216.40 = 301,997.82 : x
  2. Step 2: Convert to fraction form
    516,899.28/713,216.40 = 301,997.82/x
  3. Step 3: Cross multiply
    516,899.28x = 713,216.40 × 301,997.82
  4. Step 4: Simplify right side
    516,899.28x = 215,389,797,988.25
  5. Step 5: Solve for x
    x = 215,389,797,988.25/516,899.28
  6. Step 6: Final answer
    x = 416,695.88

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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.