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Finding the Fourth Proportional to 469,791.54, 648,344.61 and 265,842.18

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Solution

The fourth proportional to 469,791.54, 648,344.61 and 265,842.18 is: 366,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,791.54 : 648,344.61 = 265,842.18 : x
  2. Step 2: Convert to fraction form
    469,791.54/648,344.61 = 265,842.18/x
  3. Step 3: Cross multiply
    469,791.54x = 648,344.61 × 265,842.18
  4. Step 4: Simplify right side
    469,791.54x = 172,357,344,513.65
  5. Step 5: Solve for x
    x = 172,357,344,513.65/469,791.54
  6. Step 6: Final answer
    x = 366,880.48

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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.