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Finding the Fourth Proportional to 364,787.42, 503,354.57 and 203,638.93

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Solution

The fourth proportional to 364,787.42, 503,354.57 and 203,638.93 is: 280,992.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,787.42 : 503,354.57 = 203,638.93 : x
  2. Step 2: Convert to fraction form
    364,787.42/503,354.57 = 203,638.93/x
  3. Step 3: Cross multiply
    364,787.42x = 503,354.57 × 203,638.93
  4. Step 4: Simplify right side
    364,787.42x = 102,502,583,768.83
  5. Step 5: Solve for x
    x = 102,502,583,768.83/364,787.42
  6. Step 6: Final answer
    x = 280,992.65

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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.