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Finding the Fourth Proportional to 418,477.26, 577,486.44 and 237,205.86

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Solution

The fourth proportional to 418,477.26, 577,486.44 and 237,205.86 is: 327,337.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,477.26 : 577,486.44 = 237,205.86 : x
  2. Step 2: Convert to fraction form
    418,477.26/577,486.44 = 237,205.86/x
  3. Step 3: Cross multiply
    418,477.26x = 577,486.44 × 237,205.86
  4. Step 4: Simplify right side
    418,477.26x = 136,983,167,638.54
  5. Step 5: Solve for x
    x = 136,983,167,638.54/418,477.26
  6. Step 6: Final answer
    x = 327,337.18

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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.