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Finding the Fourth Proportional to 1,120,054,505.40, 1,678,646,867.40 and 996,653,905.20

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Solution

The fourth proportional to 1,120,054,505.40, 1,678,646,867.40 and 996,653,905.20 is: 1,493,704,054.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,054,505.40 : 1,678,646,867.40 = 996,653,905.20 : x
  2. Step 2: Convert to fraction form
    1,120,054,505.40/1,678,646,867.40 = 996,653,905.20/x
  3. Step 3: Cross multiply
    1,120,054,505.40x = 1,678,646,867.40 × 996,653,905.20
  4. Step 4: Simplify right side
    1,120,054,505.40x = 1,673,029,955,845,956,864
  5. Step 5: Solve for x
    x = 1,673,029,955,845,956,864/1,120,054,505.40
  6. Step 6: Final answer
    x = 1,493,704,054.38

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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.