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Finding the Fourth Proportional to 1,053,543,272, 1,579,979,956.80 and 984,764,007.68

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Solution

The fourth proportional to 1,053,543,272, 1,579,979,956.80 and 984,764,007.68 is: 1,476,832,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,543,272 : 1,579,979,956.80 = 984,764,007.68 : x
  2. Step 2: Convert to fraction form
    1,053,543,272/1,579,979,956.80 = 984,764,007.68/x
  3. Step 3: Cross multiply
    1,053,543,272x = 1,579,979,956.80 × 984,764,007.68
  4. Step 4: Simplify right side
    1,053,543,272x = 1,555,907,394,312,441,088
  5. Step 5: Solve for x
    x = 1,555,907,394,312,441,088/1,053,543,272
  6. Step 6: Final answer
    x = 1,476,832,927.19

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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.