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Finding the Fourth Proportional to 366,321.80, 549,482.70 and 206,233.40

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Solution

The fourth proportional to 366,321.80, 549,482.70 and 206,233.40 is: 309,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,321.80 : 549,482.70 = 206,233.40 : x
  2. Step 2: Convert to fraction form
    366,321.80/549,482.70 = 206,233.40/x
  3. Step 3: Cross multiply
    366,321.80x = 549,482.70 × 206,233.40
  4. Step 4: Simplify right side
    366,321.80x = 113,321,685,462.18
  5. Step 5: Solve for x
    x = 113,321,685,462.18/366,321.80
  6. Step 6: Final answer
    x = 309,350.10

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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.