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Finding the Fourth Proportional to 330,168.96, 455,661.36 and 186,954.24

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Solution

The fourth proportional to 330,168.96, 455,661.36 and 186,954.24 is: 258,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,168.96 : 455,661.36 = 186,954.24 : x
  2. Step 2: Convert to fraction form
    330,168.96/455,661.36 = 186,954.24/x
  3. Step 3: Cross multiply
    330,168.96x = 455,661.36 × 186,954.24
  4. Step 4: Simplify right side
    330,168.96x = 85,187,823,256.17
  5. Step 5: Solve for x
    x = 85,187,823,256.17/330,168.96
  6. Step 6: Final answer
    x = 258,012.82

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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.