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Finding the Fourth Proportional to 389,073.97, 536,744.64 and 227,857.51

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Solution

The fourth proportional to 389,073.97, 536,744.64 and 227,857.51 is: 314,339.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,073.97 : 536,744.64 = 227,857.51 : x
  2. Step 2: Convert to fraction form
    389,073.97/536,744.64 = 227,857.51/x
  3. Step 3: Cross multiply
    389,073.97x = 536,744.64 × 227,857.51
  4. Step 4: Simplify right side
    389,073.97x = 122,301,297,176.25
  5. Step 5: Solve for x
    x = 122,301,297,176.25/389,073.97
  6. Step 6: Final answer
    x = 314,339.45

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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.