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Finding the Fourth Proportional to 443,124.10, 665,014.20 and 293,314.60

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Solution

The fourth proportional to 443,124.10, 665,014.20 and 293,314.60 is: 440,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,124.10 : 665,014.20 = 293,314.60 : x
  2. Step 2: Convert to fraction form
    443,124.10/665,014.20 = 293,314.60/x
  3. Step 3: Cross multiply
    443,124.10x = 665,014.20 × 293,314.60
  4. Step 4: Simplify right side
    443,124.10x = 195,058,374,067.32
  5. Step 5: Solve for x
    x = 195,058,374,067.32/443,124.10
  6. Step 6: Final answer
    x = 440,189.04

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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.