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Finding the Fourth Proportional to 407,730.70, 562,672.20 and 237,932.02

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Solution

The fourth proportional to 407,730.70, 562,672.20 and 237,932.02 is: 328,348.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,730.70 : 562,672.20 = 237,932.02 : x
  2. Step 2: Convert to fraction form
    407,730.70/562,672.20 = 237,932.02/x
  3. Step 3: Cross multiply
    407,730.70x = 562,672.20 × 237,932.02
  4. Step 4: Simplify right side
    407,730.70x = 133,877,733,143.84
  5. Step 5: Solve for x
    x = 133,877,733,143.84/407,730.70
  6. Step 6: Final answer
    x = 328,348.42

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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.