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Finding the Fourth Proportional to 4,709,607.75, 7,059,927.56 and 1,512,491.90

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Solution

The fourth proportional to 4,709,607.75, 7,059,927.56 and 1,512,491.90 is: 2,267,297.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709,607.75 : 7,059,927.56 = 1,512,491.90 : x
  2. Step 2: Convert to fraction form
    4,709,607.75/7,059,927.56 = 1,512,491.90/x
  3. Step 3: Cross multiply
    4,709,607.75x = 7,059,927.56 × 1,512,491.90
  4. Step 4: Simplify right side
    4,709,607.75x = 10,678,083,241,524.30
  5. Step 5: Solve for x
    x = 10,678,083,241,524.30/4,709,607.75
  6. Step 6: Final answer
    x = 2,267,297.79

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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.