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Finding the Fourth Proportional to 620,593,267.80, 930,889,901.70 and 275,180,237.40

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Solution

The fourth proportional to 620,593,267.80, 930,889,901.70 and 275,180,237.40 is: 412,770,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,593,267.80 : 930,889,901.70 = 275,180,237.40 : x
  2. Step 2: Convert to fraction form
    620,593,267.80/930,889,901.70 = 275,180,237.40/x
  3. Step 3: Cross multiply
    620,593,267.80x = 930,889,901.70 × 275,180,237.40
  4. Step 4: Simplify right side
    620,593,267.80x = 256,162,504,143,068,640
  5. Step 5: Solve for x
    x = 256,162,504,143,068,640/620,593,267.80
  6. Step 6: Final answer
    x = 412,770,356.10

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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.