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Finding the Fourth Proportional to 468,752.44, 646,839.40 and 275,139.24

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Solution

The fourth proportional to 468,752.44, 646,839.40 and 275,139.24 is: 379,669.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,752.44 : 646,839.40 = 275,139.24 : x
  2. Step 2: Convert to fraction form
    468,752.44/646,839.40 = 275,139.24/x
  3. Step 3: Cross multiply
    468,752.44x = 646,839.40 × 275,139.24
  4. Step 4: Simplify right side
    468,752.44x = 177,970,900,918.06
  5. Step 5: Solve for x
    x = 177,970,900,918.06/468,752.44
  6. Step 6: Final answer
    x = 379,669.28

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1.5x scale

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.