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Finding the Fourth Proportional to 331,831.80, 497,358.90 and 248,628.60

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Solution

The fourth proportional to 331,831.80, 497,358.90 and 248,628.60 is: 372,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,831.80 : 497,358.90 = 248,628.60 : x
  2. Step 2: Convert to fraction form
    331,831.80/497,358.90 = 248,628.60/x
  3. Step 3: Cross multiply
    331,831.80x = 497,358.90 × 248,628.60
  4. Step 4: Simplify right side
    331,831.80x = 123,657,647,004.54
  5. Step 5: Solve for x
    x = 123,657,647,004.54/331,831.80
  6. Step 6: Final answer
    x = 372,651.59

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1.5x scale

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.