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Finding the Fourth Proportional to 4,662,617.80, 6,993,926.70 and 2,768,384.20

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Solution

The fourth proportional to 4,662,617.80, 6,993,926.70 and 2,768,384.20 is: 4,152,576.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,662,617.80 : 6,993,926.70 = 2,768,384.20 : x
  2. Step 2: Convert to fraction form
    4,662,617.80/6,993,926.70 = 2,768,384.20/x
  3. Step 3: Cross multiply
    4,662,617.80x = 6,993,926.70 × 2,768,384.20
  4. Step 4: Simplify right side
    4,662,617.80x = 19,361,876,172,238.14
  5. Step 5: Solve for x
    x = 19,361,876,172,238.14/4,662,617.80
  6. Step 6: Final answer
    x = 4,152,576.30

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Similar ratio
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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.