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Finding the Fourth Proportional to 362,686.20, 543,834.90 and 152,086.20

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Solution

The fourth proportional to 362,686.20, 543,834.90 and 152,086.20 is: 228,047.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,686.20 : 543,834.90 = 152,086.20 : x
  2. Step 2: Convert to fraction form
    362,686.20/543,834.90 = 152,086.20/x
  3. Step 3: Cross multiply
    362,686.20x = 543,834.90 × 152,086.20
  4. Step 4: Simplify right side
    362,686.20x = 82,709,783,368.38
  5. Step 5: Solve for x
    x = 82,709,783,368.38/362,686.20
  6. Step 6: Final answer
    x = 228,047.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.