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Finding the Fourth Proportional to 1,775,458,974.16, 2,664,240,567 and 989,170,757.20

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Solution

The fourth proportional to 1,775,458,974.16, 2,664,240,567 and 989,170,757.20 is: 1,484,342,300.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,458,974.16 : 2,664,240,567 = 989,170,757.20 : x
  2. Step 2: Convert to fraction form
    1,775,458,974.16/2,664,240,567 = 989,170,757.20/x
  3. Step 3: Cross multiply
    1,775,458,974.16x = 2,664,240,567 × 989,170,757.20
  4. Step 4: Simplify right side
    1,775,458,974.16x = 2,635,388,859,022,347,264
  5. Step 5: Solve for x
    x = 2,635,388,859,022,347,264/1,775,458,974.16
  6. Step 6: Final answer
    x = 1,484,342,300.99

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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.