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Finding the Fourth Proportional to 476,994.30, 658,220.31 and 262,129.74

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Solution

The fourth proportional to 476,994.30, 658,220.31 and 262,129.74 is: 361,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,994.30 : 658,220.31 = 262,129.74 : x
  2. Step 2: Convert to fraction form
    476,994.30/658,220.31 = 262,129.74/x
  3. Step 3: Cross multiply
    476,994.30x = 658,220.31 × 262,129.74
  4. Step 4: Simplify right side
    476,994.30x = 172,539,118,723.02
  5. Step 5: Solve for x
    x = 172,539,118,723.02/476,994.30
  6. Step 6: Final answer
    x = 361,721.55

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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.