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Finding the Fourth Proportional to 282,591.18, 389,586.11 and 225,424.42

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Solution

The fourth proportional to 282,591.18, 389,586.11 and 225,424.42 is: 310,774.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,591.18 : 389,586.11 = 225,424.42 : x
  2. Step 2: Convert to fraction form
    282,591.18/389,586.11 = 225,424.42/x
  3. Step 3: Cross multiply
    282,591.18x = 389,586.11 × 225,424.42
  4. Step 4: Simplify right side
    282,591.18x = 87,822,220,785.72
  5. Step 5: Solve for x
    x = 87,822,220,785.72/282,591.18
  6. Step 6: Final answer
    x = 310,774.81

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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.