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Finding the Fourth Proportional to 395,379.16, 593,399.22 and 358,178.32

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Solution

The fourth proportional to 395,379.16, 593,399.22 and 358,178.32 is: 537,566.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,379.16 : 593,399.22 = 358,178.32 : x
  2. Step 2: Convert to fraction form
    395,379.16/593,399.22 = 358,178.32/x
  3. Step 3: Cross multiply
    395,379.16x = 593,399.22 × 358,178.32
  4. Step 4: Simplify right side
    395,379.16x = 212,542,735,708.91
  5. Step 5: Solve for x
    x = 212,542,735,708.91/395,379.16
  6. Step 6: Final answer
    x = 537,566.87

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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.