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Finding the Fourth Proportional to 4,788,497.20, 7,182,745.80 and 4,788,497.20

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Solution

The fourth proportional to 4,788,497.20, 7,182,745.80 and 4,788,497.20 is: 7,182,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788,497.20 : 7,182,745.80 = 4,788,497.20 : x
  2. Step 2: Convert to fraction form
    4,788,497.20/7,182,745.80 = 4,788,497.20/x
  3. Step 3: Cross multiply
    4,788,497.20x = 7,182,745.80 × 4,788,497.20
  4. Step 4: Simplify right side
    4,788,497.20x = 34,394,558,151,611.76
  5. Step 5: Solve for x
    x = 34,394,558,151,611.76/4,788,497.20
  6. Step 6: Final answer
    x = 7,182,745.80

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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.