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Finding the Fourth Proportional to 331,393.51, 457,323.06 and 180,490.51

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Solution

The fourth proportional to 331,393.51, 457,323.06 and 180,490.51 is: 249,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,393.51 : 457,323.06 = 180,490.51 : x
  2. Step 2: Convert to fraction form
    331,393.51/457,323.06 = 180,490.51/x
  3. Step 3: Cross multiply
    331,393.51x = 457,323.06 × 180,490.51
  4. Step 4: Simplify right side
    331,393.51x = 82,542,472,334.16
  5. Step 5: Solve for x
    x = 82,542,472,334.16/331,393.51
  6. Step 6: Final answer
    x = 249,076.91

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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.