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Finding the Fourth Proportional to 865,885.88, 1,194,959.44 and 483,912.68

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Solution

The fourth proportional to 865,885.88, 1,194,959.44 and 483,912.68 is: 667,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,885.88 : 1,194,959.44 = 483,912.68 : x
  2. Step 2: Convert to fraction form
    865,885.88/1,194,959.44 = 483,912.68/x
  3. Step 3: Cross multiply
    865,885.88x = 1,194,959.44 × 483,912.68
  4. Step 4: Simplify right side
    865,885.88x = 578,256,025,101.70
  5. Step 5: Solve for x
    x = 578,256,025,101.70/865,885.88
  6. Step 6: Final answer
    x = 667,820.13

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Double scale
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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.