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Finding the Fourth Proportional to 366,915.15, 512,631.45 and 366,915.15

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Solution

The fourth proportional to 366,915.15, 512,631.45 and 366,915.15 is: 512,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,915.15 : 512,631.45 = 366,915.15 : x
  2. Step 2: Convert to fraction form
    366,915.15/512,631.45 = 366,915.15/x
  3. Step 3: Cross multiply
    366,915.15x = 512,631.45 × 366,915.15
  4. Step 4: Simplify right side
    366,915.15x = 188,092,245,371.47
  5. Step 5: Solve for x
    x = 188,092,245,371.47/366,915.15
  6. Step 6: Final answer
    x = 512,631.45

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.