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Finding the Fourth Proportional to 548,735.88, 757,284.84 and 307,003.98

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Solution

The fourth proportional to 548,735.88, 757,284.84 and 307,003.98 is: 423,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,735.88 : 757,284.84 = 307,003.98 : x
  2. Step 2: Convert to fraction form
    548,735.88/757,284.84 = 307,003.98/x
  3. Step 3: Cross multiply
    548,735.88x = 757,284.84 × 307,003.98
  4. Step 4: Simplify right side
    548,735.88x = 232,489,459,873.66
  5. Step 5: Solve for x
    x = 232,489,459,873.66/548,735.88
  6. Step 6: Final answer
    x = 423,681.90

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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.