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Finding the Fourth Proportional to 362,121.30, 543,181.95 and 228,276.90

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Solution

The fourth proportional to 362,121.30, 543,181.95 and 228,276.90 is: 342,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,121.30 : 543,181.95 = 228,276.90 : x
  2. Step 2: Convert to fraction form
    362,121.30/543,181.95 = 228,276.90/x
  3. Step 3: Cross multiply
    362,121.30x = 543,181.95 × 228,276.90
  4. Step 4: Simplify right side
    362,121.30x = 123,995,891,681.96
  5. Step 5: Solve for x
    x = 123,995,891,681.96/362,121.30
  6. Step 6: Final answer
    x = 342,415.35

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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.