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Finding the Fourth Proportional to 486,351.48, 671,175.68 and 268,559.67

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Solution

The fourth proportional to 486,351.48, 671,175.68 and 268,559.67 is: 370,618.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,351.48 : 671,175.68 = 268,559.67 : x
  2. Step 2: Convert to fraction form
    486,351.48/671,175.68 = 268,559.67/x
  3. Step 3: Cross multiply
    486,351.48x = 671,175.68 × 268,559.67
  4. Step 4: Simplify right side
    486,351.48x = 180,250,717,790.03
  5. Step 5: Solve for x
    x = 180,250,717,790.03/486,351.48
  6. Step 6: Final answer
    x = 370,618.22

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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.