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Finding the Fourth Proportional to 548,546.82, 757,155.54 and 319,158.06

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Solution

The fourth proportional to 548,546.82, 757,155.54 and 319,158.06 is: 440,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,546.82 : 757,155.54 = 319,158.06 : x
  2. Step 2: Convert to fraction form
    548,546.82/757,155.54 = 319,158.06/x
  3. Step 3: Cross multiply
    548,546.82x = 757,155.54 × 319,158.06
  4. Step 4: Simplify right side
    548,546.82x = 241,652,293,264.65
  5. Step 5: Solve for x
    x = 241,652,293,264.65/548,546.82
  6. Step 6: Final answer
    x = 440,531.75

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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.