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Finding the Fourth Proportional to 853,149.64, 1,279,792.50 and 292,189

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Solution

The fourth proportional to 853,149.64, 1,279,792.50 and 292,189 is: 438,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,149.64 : 1,279,792.50 = 292,189 : x
  2. Step 2: Convert to fraction form
    853,149.64/1,279,792.50 = 292,189/x
  3. Step 3: Cross multiply
    853,149.64x = 1,279,792.50 × 292,189
  4. Step 4: Simplify right side
    853,149.64x = 373,941,290,782.50
  5. Step 5: Solve for x
    x = 373,941,290,782.50/853,149.64
  6. Step 6: Final answer
    x = 438,306.80

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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.