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Finding the Fourth Proportional to 404,695.20, 607,042.80 and 194,743.20

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Solution

The fourth proportional to 404,695.20, 607,042.80 and 194,743.20 is: 292,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,695.20 : 607,042.80 = 194,743.20 : x
  2. Step 2: Convert to fraction form
    404,695.20/607,042.80 = 194,743.20/x
  3. Step 3: Cross multiply
    404,695.20x = 607,042.80 × 194,743.20
  4. Step 4: Simplify right side
    404,695.20x = 118,217,457,408.96
  5. Step 5: Solve for x
    x = 118,217,457,408.96/404,695.20
  6. Step 6: Final answer
    x = 292,114.80

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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.