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Finding the Fourth Proportional to 3,784,825.98, 5,677,319.64 and 1,356,137.88

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Solution

The fourth proportional to 3,784,825.98, 5,677,319.64 and 1,356,137.88 is: 2,034,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784,825.98 : 5,677,319.64 = 1,356,137.88 : x
  2. Step 2: Convert to fraction form
    3,784,825.98/5,677,319.64 = 1,356,137.88/x
  3. Step 3: Cross multiply
    3,784,825.98x = 5,677,319.64 × 1,356,137.88
  4. Step 4: Simplify right side
    3,784,825.98x = 7,699,228,220,671.96
  5. Step 5: Solve for x
    x = 7,699,228,220,671.96/3,784,825.98
  6. Step 6: Final answer
    x = 2,034,235.72

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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.