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Finding the Fourth Proportional to 622,709.49, 934,065.15 and 173,431.65

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Solution

The fourth proportional to 622,709.49, 934,065.15 and 173,431.65 is: 260,147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,709.49 : 934,065.15 = 173,431.65 : x
  2. Step 2: Convert to fraction form
    622,709.49/934,065.15 = 173,431.65/x
  3. Step 3: Cross multiply
    622,709.49x = 934,065.15 × 173,431.65
  4. Step 4: Simplify right side
    622,709.49x = 161,996,462,507.16
  5. Step 5: Solve for x
    x = 161,996,462,507.16/622,709.49
  6. Step 6: Final answer
    x = 260,147.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.