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Finding the Fourth Proportional to 361,215.28, 498,471.64 and 197,870.48

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Solution

The fourth proportional to 361,215.28, 498,471.64 and 197,870.48 is: 273,058.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,215.28 : 498,471.64 = 197,870.48 : x
  2. Step 2: Convert to fraction form
    361,215.28/498,471.64 = 197,870.48/x
  3. Step 3: Cross multiply
    361,215.28x = 498,471.64 × 197,870.48
  4. Step 4: Simplify right side
    361,215.28x = 98,632,822,673.19
  5. Step 5: Solve for x
    x = 98,632,822,673.19/361,215.28
  6. Step 6: Final answer
    x = 273,058.28

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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.