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Finding the Fourth Proportional to 466,843.40, 699,711.45 and 419,235.10

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Solution

The fourth proportional to 466,843.40, 699,711.45 and 419,235.10 is: 628,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,843.40 : 699,711.45 = 419,235.10 : x
  2. Step 2: Convert to fraction form
    466,843.40/699,711.45 = 419,235.10/x
  3. Step 3: Cross multiply
    466,843.40x = 699,711.45 × 419,235.10
  4. Step 4: Simplify right side
    466,843.40x = 293,343,599,711.90
  5. Step 5: Solve for x
    x = 293,343,599,711.90/466,843.40
  6. Step 6: Final answer
    x = 628,355.46

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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.