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Finding the Fourth Proportional to 1,224,630.06, 1,836,979.65 and 338,166.06

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Solution

The fourth proportional to 1,224,630.06, 1,836,979.65 and 338,166.06 is: 507,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,630.06 : 1,836,979.65 = 338,166.06 : x
  2. Step 2: Convert to fraction form
    1,224,630.06/1,836,979.65 = 338,166.06/x
  3. Step 3: Cross multiply
    1,224,630.06x = 1,836,979.65 × 338,166.06
  4. Step 4: Simplify right side
    1,224,630.06x = 621,204,170,540.68
  5. Step 5: Solve for x
    x = 621,204,170,540.68/1,224,630.06
  6. Step 6: Final answer
    x = 507,258.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.