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Finding the Fourth Proportional to 331,393.54, 457,323.06 and 180,490.54

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Solution

The fourth proportional to 331,393.54, 457,323.06 and 180,490.54 is: 249,076.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,393.54 : 457,323.06 = 180,490.54 : x
  2. Step 2: Convert to fraction form
    331,393.54/457,323.06 = 180,490.54/x
  3. Step 3: Cross multiply
    331,393.54x = 457,323.06 × 180,490.54
  4. Step 4: Simplify right side
    331,393.54x = 82,542,486,053.85
  5. Step 5: Solve for x
    x = 82,542,486,053.85/331,393.54
  6. Step 6: Final answer
    x = 249,076.93

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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.