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Finding the Fourth Proportional to 763,240,951.80, 1,144,861,427.70 and 763,240,951.80

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Solution

The fourth proportional to 763,240,951.80, 1,144,861,427.70 and 763,240,951.80 is: 1,144,861,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,240,951.80 : 1,144,861,427.70 = 763,240,951.80 : x
  2. Step 2: Convert to fraction form
    763,240,951.80/1,144,861,427.70 = 763,240,951.80/x
  3. Step 3: Cross multiply
    763,240,951.80x = 1,144,861,427.70 × 763,240,951.80
  4. Step 4: Simplify right side
    763,240,951.80x = 873,805,125,756,854,912
  5. Step 5: Solve for x
    x = 873,805,125,756,854,912/763,240,951.80
  6. Step 6: Final answer
    x = 1,144,861,427.70

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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.