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Finding the Fourth Proportional to 339,967.36, 468,798.74 and 253,788.11

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Solution

The fourth proportional to 339,967.36, 468,798.74 and 253,788.11 is: 349,961.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,967.36 : 468,798.74 = 253,788.11 : x
  2. Step 2: Convert to fraction form
    339,967.36/468,798.74 = 253,788.11/x
  3. Step 3: Cross multiply
    339,967.36x = 468,798.74 × 253,788.11
  4. Step 4: Simplify right side
    339,967.36x = 118,975,546,194.98
  5. Step 5: Solve for x
    x = 118,975,546,194.98/339,967.36
  6. Step 6: Final answer
    x = 349,961.67

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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.