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Finding the Fourth Proportional to 373,114.22, 514,899.32 and 211,978.11

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Solution

The fourth proportional to 373,114.22, 514,899.32 and 211,978.11 is: 292,530.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,114.22 : 514,899.32 = 211,978.11 : x
  2. Step 2: Convert to fraction form
    373,114.22/514,899.32 = 211,978.11/x
  3. Step 3: Cross multiply
    373,114.22x = 514,899.32 × 211,978.11
  4. Step 4: Simplify right side
    373,114.22x = 109,147,385,564.87
  5. Step 5: Solve for x
    x = 109,147,385,564.87/373,114.22
  6. Step 6: Final answer
    x = 292,530.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.