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Finding the Fourth Proportional to 6,991,409.40, 10,469,399.40 and 5,574,233.40

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Solution

The fourth proportional to 6,991,409.40, 10,469,399.40 and 5,574,233.40 is: 8,347,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991,409.40 : 10,469,399.40 = 5,574,233.40 : x
  2. Step 2: Convert to fraction form
    6,991,409.40/10,469,399.40 = 5,574,233.40/x
  3. Step 3: Cross multiply
    6,991,409.40x = 10,469,399.40 × 5,574,233.40
  4. Step 4: Simplify right side
    6,991,409.40x = 58,358,875,813,419.97
  5. Step 5: Solve for x
    x = 58,358,875,813,419.97/6,991,409.40
  6. Step 6: Final answer
    x = 8,347,226.21

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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.