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Finding the Fourth Proportional to 418,684.53, 577,779.21 and 227,693.82

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Solution

The fourth proportional to 418,684.53, 577,779.21 and 227,693.82 is: 314,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,684.53 : 577,779.21 = 227,693.82 : x
  2. Step 2: Convert to fraction form
    418,684.53/577,779.21 = 227,693.82/x
  3. Step 3: Cross multiply
    418,684.53x = 577,779.21 × 227,693.82
  4. Step 4: Simplify right side
    418,684.53x = 131,556,755,441.48
  5. Step 5: Solve for x
    x = 131,556,755,441.48/418,684.53
  6. Step 6: Final answer
    x = 314,214.51

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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.