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Finding the Fourth Proportional to 445,358.25, 615,105.15 and 293,076.28

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Solution

The fourth proportional to 445,358.25, 615,105.15 and 293,076.28 is: 404,781.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,358.25 : 615,105.15 = 293,076.28 : x
  2. Step 2: Convert to fraction form
    445,358.25/615,105.15 = 293,076.28/x
  3. Step 3: Cross multiply
    445,358.25x = 615,105.15 × 293,076.28
  4. Step 4: Simplify right side
    445,358.25x = 180,272,724,629.94
  5. Step 5: Solve for x
    x = 180,272,724,629.94/445,358.25
  6. Step 6: Final answer
    x = 404,781.37

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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.