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Finding the Fourth Proportional to 606,851.20, 910,276.80 and 394,274.80

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Solution

The fourth proportional to 606,851.20, 910,276.80 and 394,274.80 is: 591,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,851.20 : 910,276.80 = 394,274.80 : x
  2. Step 2: Convert to fraction form
    606,851.20/910,276.80 = 394,274.80/x
  3. Step 3: Cross multiply
    606,851.20x = 910,276.80 × 394,274.80
  4. Step 4: Simplify right side
    606,851.20x = 358,899,203,264.64
  5. Step 5: Solve for x
    x = 358,899,203,264.64/606,851.20
  6. Step 6: Final answer
    x = 591,412.20

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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.