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Finding the Fourth Proportional to 479,427.90, 718,636.33 and 159,494.32

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Solution

The fourth proportional to 479,427.90, 718,636.33 and 159,494.32 is: 239,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,427.90 : 718,636.33 = 159,494.32 : x
  2. Step 2: Convert to fraction form
    479,427.90/718,636.33 = 159,494.32/x
  3. Step 3: Cross multiply
    479,427.90x = 718,636.33 × 159,494.32
  4. Step 4: Simplify right side
    479,427.90x = 114,618,413,430.38
  5. Step 5: Solve for x
    x = 114,618,413,430.38/479,427.90
  6. Step 6: Final answer
    x = 239,073.30

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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.