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Finding the Fourth Proportional to 578,525.16, 867,462.86 and 396,361.56

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Solution

The fourth proportional to 578,525.16, 867,462.86 and 396,361.56 is: 594,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,525.16 : 867,462.86 = 396,361.56 : x
  2. Step 2: Convert to fraction form
    578,525.16/867,462.86 = 396,361.56/x
  3. Step 3: Cross multiply
    578,525.16x = 867,462.86 × 396,361.56
  4. Step 4: Simplify right side
    578,525.16x = 343,828,932,431.66
  5. Step 5: Solve for x
    x = 343,828,932,431.66/578,525.16
  6. Step 6: Final answer
    x = 594,319.76

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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.