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Finding the Fourth Proportional to 362,103.80, 543,155.70 and 228,259.40

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Solution

The fourth proportional to 362,103.80, 543,155.70 and 228,259.40 is: 342,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,103.80 : 543,155.70 = 228,259.40 : x
  2. Step 2: Convert to fraction form
    362,103.80/543,155.70 = 228,259.40/x
  3. Step 3: Cross multiply
    362,103.80x = 543,155.70 × 228,259.40
  4. Step 4: Simplify right side
    362,103.80x = 123,980,394,188.58
  5. Step 5: Solve for x
    x = 123,980,394,188.58/362,103.80
  6. Step 6: Final answer
    x = 342,389.10

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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.