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Finding the Fourth Proportional to 550,462.02, 759,576.85 and 308,694.84

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Solution

The fourth proportional to 550,462.02, 759,576.85 and 308,694.84 is: 425,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,462.02 : 759,576.85 = 308,694.84 : x
  2. Step 2: Convert to fraction form
    550,462.02/759,576.85 = 308,694.84/x
  3. Step 3: Cross multiply
    550,462.02x = 759,576.85 × 308,694.84
  4. Step 4: Simplify right side
    550,462.02x = 234,477,454,178.45
  5. Step 5: Solve for x
    x = 234,477,454,178.45/550,462.02
  6. Step 6: Final answer
    x = 425,964.82

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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.