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Finding the Fourth Proportional to 282,265.70, 389,524.30 and 154,933.70

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Solution

The fourth proportional to 282,265.70, 389,524.30 and 154,933.70 is: 213,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,265.70 : 389,524.30 = 154,933.70 : x
  2. Step 2: Convert to fraction form
    282,265.70/389,524.30 = 154,933.70/x
  3. Step 3: Cross multiply
    282,265.70x = 389,524.30 × 154,933.70
  4. Step 4: Simplify right side
    282,265.70x = 60,350,441,038.91
  5. Step 5: Solve for x
    x = 60,350,441,038.91/282,265.70
  6. Step 6: Final answer
    x = 213,807.21

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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.