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Finding the Fourth Proportional to 655,693.93, 982,957.39 and 256,243.85

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Solution

The fourth proportional to 655,693.93, 982,957.39 and 256,243.85 is: 384,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,693.93 : 982,957.39 = 256,243.85 : x
  2. Step 2: Convert to fraction form
    655,693.93/982,957.39 = 256,243.85/x
  3. Step 3: Cross multiply
    655,693.93x = 982,957.39 × 256,243.85
  4. Step 4: Simplify right side
    655,693.93x = 251,876,780,444.16
  5. Step 5: Solve for x
    x = 251,876,780,444.16/655,693.93
  6. Step 6: Final answer
    x = 384,137.74

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1.5x scale

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.