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Finding the Fourth Proportional to 3,788,765.34, 5,679,178.44 and 1,765,340.52

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Solution

The fourth proportional to 3,788,765.34, 5,679,178.44 and 1,765,340.52 is: 2,646,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788,765.34 : 5,679,178.44 = 1,765,340.52 : x
  2. Step 2: Convert to fraction form
    3,788,765.34/5,679,178.44 = 1,765,340.52/x
  3. Step 3: Cross multiply
    3,788,765.34x = 5,679,178.44 × 1,765,340.52
  4. Step 4: Simplify right side
    3,788,765.34x = 10,025,683,820,442.39
  5. Step 5: Solve for x
    x = 10,025,683,820,442.39/3,788,765.34
  6. Step 6: Final answer
    x = 2,646,161.20

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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.