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Finding the Fourth Proportional to 2,188,502.40, 3,274,880.40 and 1,479,914.40

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Solution

The fourth proportional to 2,188,502.40, 3,274,880.40 and 1,479,914.40 is: 2,214,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,502.40 : 3,274,880.40 = 1,479,914.40 : x
  2. Step 2: Convert to fraction form
    2,188,502.40/3,274,880.40 = 1,479,914.40/x
  3. Step 3: Cross multiply
    2,188,502.40x = 3,274,880.40 × 1,479,914.40
  4. Step 4: Simplify right side
    2,188,502.40x = 4,846,542,662,237.76
  5. Step 5: Solve for x
    x = 4,846,542,662,237.76/2,188,502.40
  6. Step 6: Final answer
    x = 2,214,547.57

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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.