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Finding the Fourth Proportional to 893,857,976.20, 1,340,786,964.30 and 247,625,720.20

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Solution

The fourth proportional to 893,857,976.20, 1,340,786,964.30 and 247,625,720.20 is: 371,438,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,857,976.20 : 1,340,786,964.30 = 247,625,720.20 : x
  2. Step 2: Convert to fraction form
    893,857,976.20/1,340,786,964.30 = 247,625,720.20/x
  3. Step 3: Cross multiply
    893,857,976.20x = 1,340,786,964.30 × 247,625,720.20
  4. Step 4: Simplify right side
    893,857,976.20x = 332,013,337,669,559,168
  5. Step 5: Solve for x
    x = 332,013,337,669,559,168/893,857,976.20
  6. Step 6: Final answer
    x = 371,438,580.30

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1.5x scale

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.