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Finding the Fourth Proportional to 393,727.68, 589,705.18 and 275,924.93

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Solution

The fourth proportional to 393,727.68, 589,705.18 and 275,924.93 is: 413,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,727.68 : 589,705.18 = 275,924.93 : x
  2. Step 2: Convert to fraction form
    393,727.68/589,705.18 = 275,924.93/x
  3. Step 3: Cross multiply
    393,727.68x = 589,705.18 × 275,924.93
  4. Step 4: Simplify right side
    393,727.68x = 162,714,356,873.80
  5. Step 5: Solve for x
    x = 162,714,356,873.80/393,727.68
  6. Step 6: Final answer
    x = 413,266.24

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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.