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Finding the Fourth Proportional to 431,538.08, 595,777.72 and 383,658.96

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Solution

The fourth proportional to 431,538.08, 595,777.72 and 383,658.96 is: 529,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,538.08 : 595,777.72 = 383,658.96 : x
  2. Step 2: Convert to fraction form
    431,538.08/595,777.72 = 383,658.96/x
  3. Step 3: Cross multiply
    431,538.08x = 595,777.72 × 383,658.96
  4. Step 4: Simplify right side
    431,538.08x = 228,575,459,487.22
  5. Step 5: Solve for x
    x = 228,575,459,487.22/431,538.08
  6. Step 6: Final answer
    x = 529,676.22

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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.