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Finding the Fourth Proportional to 468,366.13, 646,344.75 and 253,505.85

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Solution

The fourth proportional to 468,366.13, 646,344.75 and 253,505.85 is: 349,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,366.13 : 646,344.75 = 253,505.85 : x
  2. Step 2: Convert to fraction form
    468,366.13/646,344.75 = 253,505.85/x
  3. Step 3: Cross multiply
    468,366.13x = 646,344.75 × 253,505.85
  4. Step 4: Simplify right side
    468,366.13x = 163,852,175,241.79
  5. Step 5: Solve for x
    x = 163,852,175,241.79/468,366.13
  6. Step 6: Final answer
    x = 349,837.80

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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.