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Finding the Fourth Proportional to 330,191.82, 455,686.49 and 185,009.24

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Solution

The fourth proportional to 330,191.82, 455,686.49 and 185,009.24 is: 255,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,191.82 : 455,686.49 = 185,009.24 : x
  2. Step 2: Convert to fraction form
    330,191.82/455,686.49 = 185,009.24/x
  3. Step 3: Cross multiply
    330,191.82x = 455,686.49 × 185,009.24
  4. Step 4: Simplify right side
    330,191.82x = 84,306,211,193.17
  5. Step 5: Solve for x
    x = 84,306,211,193.17/330,191.82
  6. Step 6: Final answer
    x = 255,324.95

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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.