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Finding the Fourth Proportional to 403,329, 556,606.98 and 222,031.56

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Solution

The fourth proportional to 403,329, 556,606.98 and 222,031.56 is: 306,410.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,329 : 556,606.98 = 222,031.56 : x
  2. Step 2: Convert to fraction form
    403,329/556,606.98 = 222,031.56/x
  3. Step 3: Cross multiply
    403,329x = 556,606.98 × 222,031.56
  4. Step 4: Simplify right side
    403,329x = 123,584,316,076.29
  5. Step 5: Solve for x
    x = 123,584,316,076.29/403,329
  6. Step 6: Final answer
    x = 306,410.69

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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.