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Finding the Fourth Proportional to 356,957.16, 492,596.28 and 203,993.61

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Solution

The fourth proportional to 356,957.16, 492,596.28 and 203,993.61 is: 281,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,957.16 : 492,596.28 = 203,993.61 : x
  2. Step 2: Convert to fraction form
    356,957.16/492,596.28 = 203,993.61/x
  3. Step 3: Cross multiply
    356,957.16x = 492,596.28 × 203,993.61
  4. Step 4: Simplify right side
    356,957.16x = 100,486,493,429.77
  5. Step 5: Solve for x
    x = 100,486,493,429.77/356,957.16
  6. Step 6: Final answer
    x = 281,508.55

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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.