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Finding the Fourth Proportional to 5,868,640.40, 8,802,960.60 and 2,456,337.20

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Solution

The fourth proportional to 5,868,640.40, 8,802,960.60 and 2,456,337.20 is: 3,684,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,868,640.40 : 8,802,960.60 = 2,456,337.20 : x
  2. Step 2: Convert to fraction form
    5,868,640.40/8,802,960.60 = 2,456,337.20/x
  3. Step 3: Cross multiply
    5,868,640.40x = 8,802,960.60 × 2,456,337.20
  4. Step 4: Simplify right side
    5,868,640.40x = 21,623,039,591,914.32
  5. Step 5: Solve for x
    x = 21,623,039,591,914.32/5,868,640.40
  6. Step 6: Final answer
    x = 3,684,505.80

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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.