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Finding the Fourth Proportional to 617,968.40, 867,022 and 617,968.40

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Solution

The fourth proportional to 617,968.40, 867,022 and 617,968.40 is: 867,022

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,968.40 : 867,022 = 617,968.40 : x
  2. Step 2: Convert to fraction form
    617,968.40/867,022 = 617,968.40/x
  3. Step 3: Cross multiply
    617,968.40x = 867,022 × 617,968.40
  4. Step 4: Simplify right side
    617,968.40x = 535,792,198,104.80
  5. Step 5: Solve for x
    x = 535,792,198,104.80/617,968.40
  6. Step 6: Final answer
    x = 867,022

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.