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Finding the Fourth Proportional to 438,941.72, 658,364.72 and 297,694.32

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Solution

The fourth proportional to 438,941.72, 658,364.72 and 297,694.32 is: 446,509.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,941.72 : 658,364.72 = 297,694.32 : x
  2. Step 2: Convert to fraction form
    438,941.72/658,364.72 = 297,694.32/x
  3. Step 3: Cross multiply
    438,941.72x = 658,364.72 × 297,694.32
  4. Step 4: Simplify right side
    438,941.72x = 195,991,436,143.92
  5. Step 5: Solve for x
    x = 195,991,436,143.92/438,941.72
  6. Step 6: Final answer
    x = 446,509.02

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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.