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Finding the Fourth Proportional to 1,229,461,906.02, 1,696,670,891.62 and 672,544,958.56

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Solution

The fourth proportional to 1,229,461,906.02, 1,696,670,891.62 and 672,544,958.56 is: 928,119,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,461,906.02 : 1,696,670,891.62 = 672,544,958.56 : x
  2. Step 2: Convert to fraction form
    1,229,461,906.02/1,696,670,891.62 = 672,544,958.56/x
  3. Step 3: Cross multiply
    1,229,461,906.02x = 1,696,670,891.62 × 672,544,958.56
  4. Step 4: Simplify right side
    1,229,461,906.02x = 1,141,087,454,494,530,944
  5. Step 5: Solve for x
    x = 1,141,087,454,494,530,944/1,229,461,906.02
  6. Step 6: Final answer
    x = 928,119,406.47

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.