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Finding the Fourth Proportional to 1,702,561,616.90, 2,349,593,003.31 and 988,041,849.60

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Solution

The fourth proportional to 1,702,561,616.90, 2,349,593,003.31 and 988,041,849.60 is: 1,363,531,395.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702,561,616.90 : 2,349,593,003.31 = 988,041,849.60 : x
  2. Step 2: Convert to fraction form
    1,702,561,616.90/2,349,593,003.31 = 988,041,849.60/x
  3. Step 3: Cross multiply
    1,702,561,616.90x = 2,349,593,003.31 × 988,041,849.60
  4. Step 4: Simplify right side
    1,702,561,616.90x = 2,321,496,216,801,034,752
  5. Step 5: Solve for x
    x = 2,321,496,216,801,034,752/1,702,561,616.90
  6. Step 6: Final answer
    x = 1,363,531,395.14

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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.