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Finding the Fourth Proportional to 770,747.40, 1,156,121.10 and 770,747.40

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Solution

The fourth proportional to 770,747.40, 1,156,121.10 and 770,747.40 is: 1,156,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,747.40 : 1,156,121.10 = 770,747.40 : x
  2. Step 2: Convert to fraction form
    770,747.40/1,156,121.10 = 770,747.40/x
  3. Step 3: Cross multiply
    770,747.40x = 1,156,121.10 × 770,747.40
  4. Step 4: Simplify right side
    770,747.40x = 891,077,331,910.14
  5. Step 5: Solve for x
    x = 891,077,331,910.14/770,747.40
  6. Step 6: Final answer
    x = 1,156,121.10

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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.