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Finding the Fourth Proportional to 469,912.83, 648,462.32 and 255,048.28

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Solution

The fourth proportional to 469,912.83, 648,462.32 and 255,048.28 is: 351,957.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,912.83 : 648,462.32 = 255,048.28 : x
  2. Step 2: Convert to fraction form
    469,912.83/648,462.32 = 255,048.28/x
  3. Step 3: Cross multiply
    469,912.83x = 648,462.32 × 255,048.28
  4. Step 4: Simplify right side
    469,912.83x = 165,389,198,085.57
  5. Step 5: Solve for x
    x = 165,389,198,085.57/469,912.83
  6. Step 6: Final answer
    x = 351,957.19

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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.