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Finding the Fourth Proportional to 547,551.92, 755,613.69 and 305,837.94

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Solution

The fourth proportional to 547,551.92, 755,613.69 and 305,837.94 is: 422,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,551.92 : 755,613.69 = 305,837.94 : x
  2. Step 2: Convert to fraction form
    547,551.92/755,613.69 = 305,837.94/x
  3. Step 3: Cross multiply
    547,551.92x = 755,613.69 × 305,837.94
  4. Step 4: Simplify right side
    547,551.92x = 231,095,334,385.40
  5. Step 5: Solve for x
    x = 231,095,334,385.40/547,551.92
  6. Step 6: Final answer
    x = 422,051.91

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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.