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Finding the Fourth Proportional to 366,919.20, 549,722.70 and 310,494.60

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Solution

The fourth proportional to 366,919.20, 549,722.70 and 310,494.60 is: 465,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,919.20 : 549,722.70 = 310,494.60 : x
  2. Step 2: Convert to fraction form
    366,919.20/549,722.70 = 310,494.60/x
  3. Step 3: Cross multiply
    366,919.20x = 549,722.70 × 310,494.60
  4. Step 4: Simplify right side
    366,919.20x = 170,685,929,847.42
  5. Step 5: Solve for x
    x = 170,685,929,847.42/366,919.20
  6. Step 6: Final answer
    x = 465,186.69

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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.