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Finding the Fourth Proportional to 491,161.20, 734,898.60 and 446,924.40

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Solution

The fourth proportional to 491,161.20, 734,898.60 and 446,924.40 is: 668,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,161.20 : 734,898.60 = 446,924.40 : x
  2. Step 2: Convert to fraction form
    491,161.20/734,898.60 = 446,924.40/x
  3. Step 3: Cross multiply
    491,161.20x = 734,898.60 × 446,924.40
  4. Step 4: Simplify right side
    491,161.20x = 328,444,115,865.84
  5. Step 5: Solve for x
    x = 328,444,115,865.84/491,161.20
  6. Step 6: Final answer
    x = 668,709.41

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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.