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Finding the Fourth Proportional to 395,497.89, 593,347.68 and 115,015.14

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Solution

The fourth proportional to 395,497.89, 593,347.68 and 115,015.14 is: 172,552.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,497.89 : 593,347.68 = 115,015.14 : x
  2. Step 2: Convert to fraction form
    395,497.89/593,347.68 = 115,015.14/x
  3. Step 3: Cross multiply
    395,497.89x = 593,347.68 × 115,015.14
  4. Step 4: Simplify right side
    395,497.89x = 68,243,966,483.88
  5. Step 5: Solve for x
    x = 68,243,966,483.88/395,497.89
  6. Step 6: Final answer
    x = 172,552.04

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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.