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Finding the Fourth Proportional to 469,891.19, 648,450.42 and 255,031.22

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Solution

The fourth proportional to 469,891.19, 648,450.42 and 255,031.22 is: 351,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,891.19 : 648,450.42 = 255,031.22 : x
  2. Step 2: Convert to fraction form
    469,891.19/648,450.42 = 255,031.22/x
  3. Step 3: Cross multiply
    469,891.19x = 648,450.42 × 255,031.22
  4. Step 4: Simplify right side
    469,891.19x = 165,375,101,722.11
  5. Step 5: Solve for x
    x = 165,375,101,722.11/469,891.19
  6. Step 6: Final answer
    x = 351,943.40

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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.