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Finding the Fourth Proportional to 619,307.40, 929,825.10 and 396,049.80

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Solution

The fourth proportional to 619,307.40, 929,825.10 and 396,049.80 is: 594,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,307.40 : 929,825.10 = 396,049.80 : x
  2. Step 2: Convert to fraction form
    619,307.40/929,825.10 = 396,049.80/x
  3. Step 3: Cross multiply
    619,307.40x = 929,825.10 × 396,049.80
  4. Step 4: Simplify right side
    619,307.40x = 368,257,044,889.98
  5. Step 5: Solve for x
    x = 368,257,044,889.98/619,307.40
  6. Step 6: Final answer
    x = 594,627.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.