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Finding the Fourth Proportional to 609,196, 840,573.84 and 394,306.24

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Solution

The fourth proportional to 609,196, 840,573.84 and 394,306.24 is: 544,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,196 : 840,573.84 = 394,306.24 : x
  2. Step 2: Convert to fraction form
    609,196/840,573.84 = 394,306.24/x
  3. Step 3: Cross multiply
    609,196x = 840,573.84 × 394,306.24
  4. Step 4: Simplify right side
    609,196x = 331,443,510,292.76
  5. Step 5: Solve for x
    x = 331,443,510,292.76/609,196
  6. Step 6: Final answer
    x = 544,067.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.