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Finding the Fourth Proportional to 552,691.70, 828,551.55 and 374,621.30

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Solution

The fourth proportional to 552,691.70, 828,551.55 and 374,621.30 is: 561,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,691.70 : 828,551.55 = 374,621.30 : x
  2. Step 2: Convert to fraction form
    552,691.70/828,551.55 = 374,621.30/x
  3. Step 3: Cross multiply
    552,691.70x = 828,551.55 × 374,621.30
  4. Step 4: Simplify right side
    552,691.70x = 310,393,058,778.02
  5. Step 5: Solve for x
    x = 310,393,058,778.02/552,691.70
  6. Step 6: Final answer
    x = 561,602.53

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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.