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Finding the Fourth Proportional to 395,495.04, 593,238.11 and 95,978.91

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Solution

The fourth proportional to 395,495.04, 593,238.11 and 95,978.91 is: 143,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,495.04 : 593,238.11 = 95,978.91 : x
  2. Step 2: Convert to fraction form
    395,495.04/593,238.11 = 95,978.91/x
  3. Step 3: Cross multiply
    395,495.04x = 593,238.11 × 95,978.91
  4. Step 4: Simplify right side
    395,495.04x = 56,938,346,688.37
  5. Step 5: Solve for x
    x = 56,938,346,688.37/395,495.04
  6. Step 6: Final answer
    x = 143,967.28

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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.