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Finding the Fourth Proportional to 373,765.59, 515,782.08 and 203,999.72

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Solution

The fourth proportional to 373,765.59, 515,782.08 and 203,999.72 is: 281,511.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,765.59 : 515,782.08 = 203,999.72 : x
  2. Step 2: Convert to fraction form
    373,765.59/515,782.08 = 203,999.72/x
  3. Step 3: Cross multiply
    373,765.59x = 515,782.08 × 203,999.72
  4. Step 4: Simplify right side
    373,765.59x = 105,219,397,322.11
  5. Step 5: Solve for x
    x = 105,219,397,322.11/373,765.59
  6. Step 6: Final answer
    x = 281,511.73

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1.5x scale

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.