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Finding the Fourth Proportional to 1,679,618,643.60, 2,346,024,145.20 and 1,679,618,643.60

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Solution

The fourth proportional to 1,679,618,643.60, 2,346,024,145.20 and 1,679,618,643.60 is: 2,346,024,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,618,643.60 : 2,346,024,145.20 = 1,679,618,643.60 : x
  2. Step 2: Convert to fraction form
    1,679,618,643.60/2,346,024,145.20 = 1,679,618,643.60/x
  3. Step 3: Cross multiply
    1,679,618,643.60x = 2,346,024,145.20 × 1,679,618,643.60
  4. Step 4: Simplify right side
    1,679,618,643.60x = 3,940,425,892,613,672,960
  5. Step 5: Solve for x
    x = 3,940,425,892,613,672,960/1,679,618,643.60
  6. Step 6: Final answer
    x = 2,346,024,145.20

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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.