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Finding the Fourth Proportional to 497,679,791.60, 746,519,687.40 and 417,058,223.60

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Solution

The fourth proportional to 497,679,791.60, 746,519,687.40 and 417,058,223.60 is: 625,587,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,679,791.60 : 746,519,687.40 = 417,058,223.60 : x
  2. Step 2: Convert to fraction form
    497,679,791.60/746,519,687.40 = 417,058,223.60/x
  3. Step 3: Cross multiply
    497,679,791.60x = 746,519,687.40 × 417,058,223.60
  4. Step 4: Simplify right side
    497,679,791.60x = 311,342,174,709,471,296
  5. Step 5: Solve for x
    x = 311,342,174,709,471,296/497,679,791.60
  6. Step 6: Final answer
    x = 625,587,335.40

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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.