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Finding the Fourth Proportional to 664,302,603.70, 996,453,905.55 and 652,823,478.10

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Solution

The fourth proportional to 664,302,603.70, 996,453,905.55 and 652,823,478.10 is: 979,235,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,603.70 : 996,453,905.55 = 652,823,478.10 : x
  2. Step 2: Convert to fraction form
    664,302,603.70/996,453,905.55 = 652,823,478.10/x
  3. Step 3: Cross multiply
    664,302,603.70x = 996,453,905.55 × 652,823,478.10
  4. Step 4: Simplify right side
    664,302,603.70x = 650,508,504,387,479,936
  5. Step 5: Solve for x
    x = 650,508,504,387,479,936/664,302,603.70
  6. Step 6: Final answer
    x = 979,235,217.15

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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.