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Finding the Fourth Proportional to 976,671,940.40, 1,465,007,910.60 and 845,158,007.60

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Solution

The fourth proportional to 976,671,940.40, 1,465,007,910.60 and 845,158,007.60 is: 1,267,737,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,671,940.40 : 1,465,007,910.60 = 845,158,007.60 : x
  2. Step 2: Convert to fraction form
    976,671,940.40/1,465,007,910.60 = 845,158,007.60/x
  3. Step 3: Cross multiply
    976,671,940.40x = 1,465,007,910.60 × 845,158,007.60
  4. Step 4: Simplify right side
    976,671,940.40x = 1,238,163,166,840,934,912
  5. Step 5: Solve for x
    x = 1,238,163,166,840,934,912/976,671,940.40
  6. Step 6: Final answer
    x = 1,267,737,011.40

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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.