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Finding the Fourth Proportional to 690,350.82, 952,683.62 and 403,926.11

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Solution

The fourth proportional to 690,350.82, 952,683.62 and 403,926.11 is: 557,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,350.82 : 952,683.62 = 403,926.11 : x
  2. Step 2: Convert to fraction form
    690,350.82/952,683.62 = 403,926.11/x
  3. Step 3: Cross multiply
    690,350.82x = 952,683.62 × 403,926.11
  4. Step 4: Simplify right side
    690,350.82x = 384,813,783,923.90
  5. Step 5: Solve for x
    x = 384,813,783,923.90/690,350.82
  6. Step 6: Final answer
    x = 557,417.73

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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.