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Finding the Fourth Proportional to 340,546.68, 469,463.45 and 238,255.22

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Solution

The fourth proportional to 340,546.68, 469,463.45 and 238,255.22 is: 328,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,546.68 : 469,463.45 = 238,255.22 : x
  2. Step 2: Convert to fraction form
    340,546.68/469,463.45 = 238,255.22/x
  3. Step 3: Cross multiply
    340,546.68x = 469,463.45 × 238,255.22
  4. Step 4: Simplify right side
    340,546.68x = 111,852,117,544.09
  5. Step 5: Solve for x
    x = 111,852,117,544.09/340,546.68
  6. Step 6: Final answer
    x = 328,448.71

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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.