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Finding the Fourth Proportional to 851,938.60, 1,275,834.30 and 851,938.60

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Solution

The fourth proportional to 851,938.60, 1,275,834.30 and 851,938.60 is: 1,275,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,938.60 : 1,275,834.30 = 851,938.60 : x
  2. Step 2: Convert to fraction form
    851,938.60/1,275,834.30 = 851,938.60/x
  3. Step 3: Cross multiply
    851,938.60x = 1,275,834.30 × 851,938.60
  4. Step 4: Simplify right side
    851,938.60x = 1,086,932,487,373.98
  5. Step 5: Solve for x
    x = 1,086,932,487,373.98/851,938.60
  6. Step 6: Final answer
    x = 1,275,834.30

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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.