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Finding the Fourth Proportional to 692,876, 956,171.76 and 374,924

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Solution

The fourth proportional to 692,876, 956,171.76 and 374,924 is: 517,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,876 : 956,171.76 = 374,924 : x
  2. Step 2: Convert to fraction form
    692,876/956,171.76 = 374,924/x
  3. Step 3: Cross multiply
    692,876x = 956,171.76 × 374,924
  4. Step 4: Simplify right side
    692,876x = 358,491,740,946.24
  5. Step 5: Solve for x
    x = 358,491,740,946.24/692,876
  6. Step 6: Final answer
    x = 517,396.68

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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.