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Finding the Fourth Proportional to 517,789.17, 714,180.98 and 345,620.33

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Solution

The fourth proportional to 517,789.17, 714,180.98 and 345,620.33 is: 476,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,789.17 : 714,180.98 = 345,620.33 : x
  2. Step 2: Convert to fraction form
    517,789.17/714,180.98 = 345,620.33/x
  3. Step 3: Cross multiply
    517,789.17x = 714,180.98 × 345,620.33
  4. Step 4: Simplify right side
    517,789.17x = 246,835,465,958.65
  5. Step 5: Solve for x
    x = 246,835,465,958.65/517,789.17
  6. Step 6: Final answer
    x = 476,710.37

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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.