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Finding the Fourth Proportional to 585,642.83, 807,874.58 and 356,270.27

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Solution

The fourth proportional to 585,642.83, 807,874.58 and 356,270.27 is: 491,462.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,642.83 : 807,874.58 = 356,270.27 : x
  2. Step 2: Convert to fraction form
    585,642.83/807,874.58 = 356,270.27/x
  3. Step 3: Cross multiply
    585,642.83x = 807,874.58 × 356,270.27
  4. Step 4: Simplify right side
    585,642.83x = 287,821,692,961.39
  5. Step 5: Solve for x
    x = 287,821,692,961.39/585,642.83
  6. Step 6: Final answer
    x = 491,462.85

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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.