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Finding the Fourth Proportional to 397,594.20, 596,391.30 and 148,243.80

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Solution

The fourth proportional to 397,594.20, 596,391.30 and 148,243.80 is: 222,365.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,594.20 : 596,391.30 = 148,243.80 : x
  2. Step 2: Convert to fraction form
    397,594.20/596,391.30 = 148,243.80/x
  3. Step 3: Cross multiply
    397,594.20x = 596,391.30 × 148,243.80
  4. Step 4: Simplify right side
    397,594.20x = 88,411,312,598.94
  5. Step 5: Solve for x
    x = 88,411,312,598.94/397,594.20
  6. Step 6: Final answer
    x = 222,365.70

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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.