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Finding the Fourth Proportional to 469,771.28, 648,279.24 and 254,916.08

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Solution

The fourth proportional to 469,771.28, 648,279.24 and 254,916.08 is: 351,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,771.28 : 648,279.24 = 254,916.08 : x
  2. Step 2: Convert to fraction form
    469,771.28/648,279.24 = 254,916.08/x
  3. Step 3: Cross multiply
    469,771.28x = 648,279.24 × 254,916.08
  4. Step 4: Simplify right side
    469,771.28x = 165,256,802,606.18
  5. Step 5: Solve for x
    x = 165,256,802,606.18/469,771.28
  6. Step 6: Final answer
    x = 351,781.41

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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.