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Finding the Fourth Proportional to 395,379.66, 593,399.97 and 358,178.82

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Solution

The fourth proportional to 395,379.66, 593,399.97 and 358,178.82 is: 537,567.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,379.66 : 593,399.97 = 358,178.82 : x
  2. Step 2: Convert to fraction form
    395,379.66/593,399.97 = 358,178.82/x
  3. Step 3: Cross multiply
    395,379.66x = 593,399.97 × 358,178.82
  4. Step 4: Simplify right side
    395,379.66x = 212,543,301,042.64
  5. Step 5: Solve for x
    x = 212,543,301,042.64/395,379.66
  6. Step 6: Final answer
    x = 537,567.62

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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.