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Finding the Fourth Proportional to 856,658.97, 1,182,189 and 512,509.46

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Solution

The fourth proportional to 856,658.97, 1,182,189 and 512,509.46 is: 707,262.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,658.97 : 1,182,189 = 512,509.46 : x
  2. Step 2: Convert to fraction form
    856,658.97/1,182,189 = 512,509.46/x
  3. Step 3: Cross multiply
    856,658.97x = 1,182,189 × 512,509.46
  4. Step 4: Simplify right side
    856,658.97x = 605,883,046,007.94
  5. Step 5: Solve for x
    x = 605,883,046,007.94/856,658.97
  6. Step 6: Final answer
    x = 707,262.83

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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.