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Finding the Fourth Proportional to 704,625.17, 972,634.89 and 418,145.24

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Solution

The fourth proportional to 704,625.17, 972,634.89 and 418,145.24 is: 577,190.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,625.17 : 972,634.89 = 418,145.24 : x
  2. Step 2: Convert to fraction form
    704,625.17/972,634.89 = 418,145.24/x
  3. Step 3: Cross multiply
    704,625.17x = 972,634.89 × 418,145.24
  4. Step 4: Simplify right side
    704,625.17x = 406,702,644,648.25
  5. Step 5: Solve for x
    x = 406,702,644,648.25/704,625.17
  6. Step 6: Final answer
    x = 577,190.06

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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.