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Finding the Fourth Proportional to 5,189,969.70, 7,784,954.55 and 3,028,776.30

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Solution

The fourth proportional to 5,189,969.70, 7,784,954.55 and 3,028,776.30 is: 4,543,164.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189,969.70 : 7,784,954.55 = 3,028,776.30 : x
  2. Step 2: Convert to fraction form
    5,189,969.70/7,784,954.55 = 3,028,776.30/x
  3. Step 3: Cross multiply
    5,189,969.70x = 7,784,954.55 × 3,028,776.30
  4. Step 4: Simplify right side
    5,189,969.70x = 23,578,885,837,617.16
  5. Step 5: Solve for x
    x = 23,578,885,837,617.16/5,189,969.70
  6. Step 6: Final answer
    x = 4,543,164.45

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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.