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Finding the Fourth Proportional to 468,672.55, 646,764.89 and 253,807.70

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Solution

The fourth proportional to 468,672.55, 646,764.89 and 253,807.70 is: 350,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,672.55 : 646,764.89 = 253,807.70 : x
  2. Step 2: Convert to fraction form
    468,672.55/646,764.89 = 253,807.70/x
  3. Step 3: Cross multiply
    468,672.55x = 646,764.89 × 253,807.70
  4. Step 4: Simplify right side
    468,672.55x = 164,153,904,668.79
  5. Step 5: Solve for x
    x = 164,153,904,668.79/468,672.55
  6. Step 6: Final answer
    x = 350,252.87

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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.