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Finding the Fourth Proportional to 1,128,796,932.42, 1,557,388,331.50 and 652,313,713.22

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Solution

The fourth proportional to 1,128,796,932.42, 1,557,388,331.50 and 652,313,713.22 is: 899,989,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,796,932.42 : 1,557,388,331.50 = 652,313,713.22 : x
  2. Step 2: Convert to fraction form
    1,128,796,932.42/1,557,388,331.50 = 652,313,713.22/x
  3. Step 3: Cross multiply
    1,128,796,932.42x = 1,557,388,331.50 × 652,313,713.22
  4. Step 4: Simplify right side
    1,128,796,932.42x = 1,015,905,765,446,265,344
  5. Step 5: Solve for x
    x = 1,015,905,765,446,265,344/1,128,796,932.42
  6. Step 6: Final answer
    x = 899,989,835.43

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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.