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Finding the Fourth Proportional to 518,791.26, 716,265.06 and 325,463.96

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Solution

The fourth proportional to 518,791.26, 716,265.06 and 325,463.96 is: 449,349.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,791.26 : 716,265.06 = 325,463.96 : x
  2. Step 2: Convert to fraction form
    518,791.26/716,265.06 = 325,463.96/x
  3. Step 3: Cross multiply
    518,791.26x = 716,265.06 × 325,463.96
  4. Step 4: Simplify right side
    518,791.26x = 233,118,462,837.24
  5. Step 5: Solve for x
    x = 233,118,462,837.24/518,791.26
  6. Step 6: Final answer
    x = 449,349.25

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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.