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Finding the Fourth Proportional to 2,796,784,658.80, 3,908,242,581.20 and 2,796,784,658.80

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Solution

The fourth proportional to 2,796,784,658.80, 3,908,242,581.20 and 2,796,784,658.80 is: 3,908,242,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796,784,658.80 : 3,908,242,581.20 = 2,796,784,658.80 : x
  2. Step 2: Convert to fraction form
    2,796,784,658.80/3,908,242,581.20 = 2,796,784,658.80/x
  3. Step 3: Cross multiply
    2,796,784,658.80x = 3,908,242,581.20 × 2,796,784,658.80
  4. Step 4: Simplify right side
    2,796,784,658.80x = 10,930,512,893,969,074,176
  5. Step 5: Solve for x
    x = 10,930,512,893,969,074,176/2,796,784,658.80
  6. Step 6: Final answer
    x = 3,908,242,581.20

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.