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Finding the Fourth Proportional to 404,707.20, 607,060.80 and 194,755.20

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Solution

The fourth proportional to 404,707.20, 607,060.80 and 194,755.20 is: 292,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,707.20 : 607,060.80 = 194,755.20 : x
  2. Step 2: Convert to fraction form
    404,707.20/607,060.80 = 194,755.20/x
  3. Step 3: Cross multiply
    404,707.20x = 607,060.80 × 194,755.20
  4. Step 4: Simplify right side
    404,707.20x = 118,228,247,516.16
  5. Step 5: Solve for x
    x = 118,228,247,516.16/404,707.20
  6. Step 6: Final answer
    x = 292,132.80

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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.