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Finding the Fourth Proportional to 637,112, 879,235.26 and 365,231.42

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Solution

The fourth proportional to 637,112, 879,235.26 and 365,231.42 is: 504,031.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,112 : 879,235.26 = 365,231.42 : x
  2. Step 2: Convert to fraction form
    637,112/879,235.26 = 365,231.42/x
  3. Step 3: Cross multiply
    637,112x = 879,235.26 × 365,231.42
  4. Step 4: Simplify right side
    637,112x = 321,124,342,523.87
  5. Step 5: Solve for x
    x = 321,124,342,523.87/637,112
  6. Step 6: Final answer
    x = 504,031.23

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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.