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Finding the Fourth Proportional to 397,592.40, 596,388.60 and 371,348.40

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Solution

The fourth proportional to 397,592.40, 596,388.60 and 371,348.40 is: 557,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,592.40 : 596,388.60 = 371,348.40 : x
  2. Step 2: Convert to fraction form
    397,592.40/596,388.60 = 371,348.40/x
  3. Step 3: Cross multiply
    397,592.40x = 596,388.60 × 371,348.40
  4. Step 4: Simplify right side
    397,592.40x = 221,467,952,388.24
  5. Step 5: Solve for x
    x = 221,467,952,388.24/397,592.40
  6. Step 6: Final answer
    x = 557,022.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.