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Finding the Fourth Proportional to 607,998.06, 911,505.15 and 253,278.54

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Solution

The fourth proportional to 607,998.06, 911,505.15 and 253,278.54 is: 379,712.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,998.06 : 911,505.15 = 253,278.54 : x
  2. Step 2: Convert to fraction form
    607,998.06/911,505.15 = 253,278.54/x
  3. Step 3: Cross multiply
    607,998.06x = 911,505.15 × 253,278.54
  4. Step 4: Simplify right side
    607,998.06x = 230,864,693,594.48
  5. Step 5: Solve for x
    x = 230,864,693,594.48/607,998.06
  6. Step 6: Final answer
    x = 379,712.88

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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.