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Finding the Fourth Proportional to 366,317.80, 549,476.70 and 206,229.40

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Solution

The fourth proportional to 366,317.80, 549,476.70 and 206,229.40 is: 309,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,317.80 : 549,476.70 = 206,229.40 : x
  2. Step 2: Convert to fraction form
    366,317.80/549,476.70 = 206,229.40/x
  3. Step 3: Cross multiply
    366,317.80x = 549,476.70 × 206,229.40
  4. Step 4: Simplify right side
    366,317.80x = 113,318,250,154.98
  5. Step 5: Solve for x
    x = 113,318,250,154.98/366,317.80
  6. Step 6: Final answer
    x = 309,344.10

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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.