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Finding the Fourth Proportional to 367,627,688.80, 550,874,662.80 and 318,876,834.40

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Solution

The fourth proportional to 367,627,688.80, 550,874,662.80 and 318,876,834.40 is: 477,823,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,627,688.80 : 550,874,662.80 = 318,876,834.40 : x
  2. Step 2: Convert to fraction form
    367,627,688.80/550,874,662.80 = 318,876,834.40/x
  3. Step 3: Cross multiply
    367,627,688.80x = 550,874,662.80 × 318,876,834.40
  4. Step 4: Simplify right side
    367,627,688.80x = 175,661,168,624,831,424
  5. Step 5: Solve for x
    x = 175,661,168,624,831,424/367,627,688.80
  6. Step 6: Final answer
    x = 477,823,553.49

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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.