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Finding the Fourth Proportional to 836,494.80, 1,253,359.80 and 712,078.80

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Solution

The fourth proportional to 836,494.80, 1,253,359.80 and 712,078.80 is: 1,066,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,494.80 : 1,253,359.80 = 712,078.80 : x
  2. Step 2: Convert to fraction form
    836,494.80/1,253,359.80 = 712,078.80/x
  3. Step 3: Cross multiply
    836,494.80x = 1,253,359.80 × 712,078.80
  4. Step 4: Simplify right side
    836,494.80x = 892,490,942,352.24
  5. Step 5: Solve for x
    x = 892,490,942,352.24/836,494.80
  6. Step 6: Final answer
    x = 1,066,941.41

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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.