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Finding the Fourth Proportional to 492,425.32, 679,537.36 and 277,561.32

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Solution

The fourth proportional to 492,425.32, 679,537.36 and 277,561.32 is: 383,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,425.32 : 679,537.36 = 277,561.32 : x
  2. Step 2: Convert to fraction form
    492,425.32/679,537.36 = 277,561.32/x
  3. Step 3: Cross multiply
    492,425.32x = 679,537.36 × 277,561.32
  4. Step 4: Simplify right side
    492,425.32x = 188,613,286,630.92
  5. Step 5: Solve for x
    x = 188,613,286,630.92/492,425.32
  6. Step 6: Final answer
    x = 383,029.22

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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.