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Finding the Fourth Proportional to 290,553, 400,985.01 and 177,397.62

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Solution

The fourth proportional to 290,553, 400,985.01 and 177,397.62 is: 244,822.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,553 : 400,985.01 = 177,397.62 : x
  2. Step 2: Convert to fraction form
    290,553/400,985.01 = 177,397.62/x
  3. Step 3: Cross multiply
    290,553x = 400,985.01 × 177,397.62
  4. Step 4: Simplify right side
    290,553x = 71,133,786,429.68
  5. Step 5: Solve for x
    x = 71,133,786,429.68/290,553
  6. Step 6: Final answer
    x = 244,822.07

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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.