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Finding the Fourth Proportional to 479,072.16, 717,969.72 and 226,419.72

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Solution

The fourth proportional to 479,072.16, 717,969.72 and 226,419.72 is: 339,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,072.16 : 717,969.72 = 226,419.72 : x
  2. Step 2: Convert to fraction form
    479,072.16/717,969.72 = 226,419.72/x
  3. Step 3: Cross multiply
    479,072.16x = 717,969.72 × 226,419.72
  4. Step 4: Simplify right side
    479,072.16x = 162,562,502,970.88
  5. Step 5: Solve for x
    x = 162,562,502,970.88/479,072.16
  6. Step 6: Final answer
    x = 339,327.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.