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Finding the Fourth Proportional to 282,612.20, 389,737.06 and 185,645.48

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Solution

The fourth proportional to 282,612.20, 389,737.06 and 185,645.48 is: 256,014.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,612.20 : 389,737.06 = 185,645.48 : x
  2. Step 2: Convert to fraction form
    282,612.20/389,737.06 = 185,645.48/x
  3. Step 3: Cross multiply
    282,612.20x = 389,737.06 × 185,645.48
  4. Step 4: Simplify right side
    282,612.20x = 72,352,923,577.49
  5. Step 5: Solve for x
    x = 72,352,923,577.49/282,612.20
  6. Step 6: Final answer
    x = 256,014.86

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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.