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Finding the Fourth Proportional to 275,818.66, 380,331.93 and 251,674.18

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Solution

The fourth proportional to 275,818.66, 380,331.93 and 251,674.18 is: 347,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,818.66 : 380,331.93 = 251,674.18 : x
  2. Step 2: Convert to fraction form
    275,818.66/380,331.93 = 251,674.18/x
  3. Step 3: Cross multiply
    275,818.66x = 380,331.93 × 251,674.18
  4. Step 4: Simplify right side
    275,818.66x = 95,719,726,610.57
  5. Step 5: Solve for x
    x = 95,719,726,610.57/275,818.66
  6. Step 6: Final answer
    x = 347,038.62

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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.