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Finding the Fourth Proportional to 544,879.17, 751,921.49 and 315,446.18

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Solution

The fourth proportional to 544,879.17, 751,921.49 and 315,446.18 is: 435,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,879.17 : 751,921.49 = 315,446.18 : x
  2. Step 2: Convert to fraction form
    544,879.17/751,921.49 = 315,446.18/x
  3. Step 3: Cross multiply
    544,879.17x = 751,921.49 × 315,446.18
  4. Step 4: Simplify right side
    544,879.17x = 237,190,756,343.57
  5. Step 5: Solve for x
    x = 237,190,756,343.57/544,879.17
  6. Step 6: Final answer
    x = 435,308.91

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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.