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Finding the Fourth Proportional to 548,682.20, 757,210.86 and 306,950.36

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Solution

The fourth proportional to 548,682.20, 757,210.86 and 306,950.36 is: 423,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,682.20 : 757,210.86 = 306,950.36 : x
  2. Step 2: Convert to fraction form
    548,682.20/757,210.86 = 306,950.36/x
  3. Step 3: Cross multiply
    548,682.20x = 757,210.86 × 306,950.36
  4. Step 4: Simplify right side
    548,682.20x = 232,426,145,682.87
  5. Step 5: Solve for x
    x = 232,426,145,682.87/548,682.20
  6. Step 6: Final answer
    x = 423,607.95

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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.