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Finding the Fourth Proportional to 984,553,662.21, 1,359,102,404.21 and 613,459,040.73

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Solution

The fourth proportional to 984,553,662.21, 1,359,102,404.21 and 613,459,040.73 is: 846,834,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,553,662.21 : 1,359,102,404.21 = 613,459,040.73 : x
  2. Step 2: Convert to fraction form
    984,553,662.21/1,359,102,404.21 = 613,459,040.73/x
  3. Step 3: Cross multiply
    984,553,662.21x = 1,359,102,404.21 × 613,459,040.73
  4. Step 4: Simplify right side
    984,553,662.21x = 833,753,657,137,436,032
  5. Step 5: Solve for x
    x = 833,753,657,137,436,032/984,553,662.21
  6. Step 6: Final answer
    x = 846,834,143.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.