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Finding the Fourth Proportional to 374,764.80, 562,406.40 and 269,659.20

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Solution

The fourth proportional to 374,764.80, 562,406.40 and 269,659.20 is: 404,675.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,764.80 : 562,406.40 = 269,659.20 : x
  2. Step 2: Convert to fraction form
    374,764.80/562,406.40 = 269,659.20/x
  3. Step 3: Cross multiply
    374,764.80x = 562,406.40 × 269,659.20
  4. Step 4: Simplify right side
    374,764.80x = 151,658,059,898.88
  5. Step 5: Solve for x
    x = 151,658,059,898.88/374,764.80
  6. Step 6: Final answer
    x = 404,675.31

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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.