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Finding the Fourth Proportional to 366,978.20, 549,811.20 and 314,490.20

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Solution

The fourth proportional to 366,978.20, 549,811.20 and 314,490.20 is: 471,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,978.20 : 549,811.20 = 314,490.20 : x
  2. Step 2: Convert to fraction form
    366,978.20/549,811.20 = 314,490.20/x
  3. Step 3: Cross multiply
    366,978.20x = 549,811.20 × 314,490.20
  4. Step 4: Simplify right side
    366,978.20x = 172,910,234,250.24
  5. Step 5: Solve for x
    x = 172,910,234,250.24/366,978.20
  6. Step 6: Final answer
    x = 471,173.04

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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.