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Finding the Fourth Proportional to 619,323.68, 854,351.61 and 404,589.44

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Solution

The fourth proportional to 619,323.68, 854,351.61 and 404,589.44 is: 558,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,323.68 : 854,351.61 = 404,589.44 : x
  2. Step 2: Convert to fraction form
    619,323.68/854,351.61 = 404,589.44/x
  3. Step 3: Cross multiply
    619,323.68x = 854,351.61 × 404,589.44
  4. Step 4: Simplify right side
    619,323.68x = 345,661,639,453.00
  5. Step 5: Solve for x
    x = 345,661,639,453.00/619,323.68
  6. Step 6: Final answer
    x = 558,127.60

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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.