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Finding the Fourth Proportional to 617,947.40, 866,992.60 and 617,947.40

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Solution

The fourth proportional to 617,947.40, 866,992.60 and 617,947.40 is: 866,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,947.40 : 866,992.60 = 617,947.40 : x
  2. Step 2: Convert to fraction form
    617,947.40/866,992.60 = 617,947.40/x
  3. Step 3: Cross multiply
    617,947.40x = 866,992.60 × 617,947.40
  4. Step 4: Simplify right side
    617,947.40x = 535,755,822,989.24
  5. Step 5: Solve for x
    x = 535,755,822,989.24/617,947.40
  6. Step 6: Final answer
    x = 866,992.60

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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.