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Finding the Fourth Proportional to 403,437, 556,781.94 and 224,589

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Solution

The fourth proportional to 403,437, 556,781.94 and 224,589 is: 309,954.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,437 : 556,781.94 = 224,589 : x
  2. Step 2: Convert to fraction form
    403,437/556,781.94 = 224,589/x
  3. Step 3: Cross multiply
    403,437x = 556,781.94 × 224,589
  4. Step 4: Simplify right side
    403,437x = 125,047,099,122.66
  5. Step 5: Solve for x
    x = 125,047,099,122.66/403,437
  6. Step 6: Final answer
    x = 309,954.46

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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.