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Finding the Fourth Proportional to 548,551.89, 756,696.87 and 319,083.35

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Solution

The fourth proportional to 548,551.89, 756,696.87 and 319,083.35 is: 440,157.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,551.89 : 756,696.87 = 319,083.35 : x
  2. Step 2: Convert to fraction form
    548,551.89/756,696.87 = 319,083.35/x
  3. Step 3: Cross multiply
    548,551.89x = 756,696.87 × 319,083.35
  4. Step 4: Simplify right side
    548,551.89x = 241,449,368,430.63
  5. Step 5: Solve for x
    x = 241,449,368,430.63/548,551.89
  6. Step 6: Final answer
    x = 440,157.76

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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.