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Finding the Fourth Proportional to 2,805,609,141.20, 3,936,452,431.60 and 2,805,609,141.20

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Solution

The fourth proportional to 2,805,609,141.20, 3,936,452,431.60 and 2,805,609,141.20 is: 3,936,452,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805,609,141.20 : 3,936,452,431.60 = 2,805,609,141.20 : x
  2. Step 2: Convert to fraction form
    2,805,609,141.20/3,936,452,431.60 = 2,805,609,141.20/x
  3. Step 3: Cross multiply
    2,805,609,141.20x = 3,936,452,431.60 × 2,805,609,141.20
  4. Step 4: Simplify right side
    2,805,609,141.20x = 11,044,146,925,995,927,552
  5. Step 5: Solve for x
    x = 11,044,146,925,995,927,552/2,805,609,141.20
  6. Step 6: Final answer
    x = 3,936,452,431.60

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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.