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Finding the Fourth Proportional to 814,244,803.90, 1,221,367,205.85 and 814,244,803.90

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Solution

The fourth proportional to 814,244,803.90, 1,221,367,205.85 and 814,244,803.90 is: 1,221,367,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,244,803.90 : 1,221,367,205.85 = 814,244,803.90 : x
  2. Step 2: Convert to fraction form
    814,244,803.90/1,221,367,205.85 = 814,244,803.90/x
  3. Step 3: Cross multiply
    814,244,803.90x = 1,221,367,205.85 × 814,244,803.90
  4. Step 4: Simplify right side
    814,244,803.90x = 994,491,901,017,224,064
  5. Step 5: Solve for x
    x = 994,491,901,017,224,064/814,244,803.90
  6. Step 6: Final answer
    x = 1,221,367,205.85

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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.