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Finding the Fourth Proportional to 836,074, 1,153,825.92 and 491,927.68

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Solution

The fourth proportional to 836,074, 1,153,825.92 and 491,927.68 is: 678,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,074 : 1,153,825.92 = 491,927.68 : x
  2. Step 2: Convert to fraction form
    836,074/1,153,825.92 = 491,927.68/x
  3. Step 3: Cross multiply
    836,074x = 1,153,825.92 × 491,927.68
  4. Step 4: Simplify right side
    836,074x = 567,598,907,949.47
  5. Step 5: Solve for x
    x = 567,598,907,949.47/836,074
  6. Step 6: Final answer
    x = 678,885.97

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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.