Home / 447,933.16-668,623.01-394,790.68

Finding the Fourth Proportional to 447,933.16, 668,623.01 and 394,790.68

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Solution

The fourth proportional to 447,933.16, 668,623.01 and 394,790.68 is: 589,298.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,933.16 : 668,623.01 = 394,790.68 : x
  2. Step 2: Convert to fraction form
    447,933.16/668,623.01 = 394,790.68/x
  3. Step 3: Cross multiply
    447,933.16x = 668,623.01 × 394,790.68
  4. Step 4: Simplify right side
    447,933.16x = 263,966,132,781.55
  5. Step 5: Solve for x
    x = 263,966,132,781.55/447,933.16
  6. Step 6: Final answer
    x = 589,298.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.