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Finding the Fourth Proportional to 395,794.60, 593,691.90 and 159,015.40

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Solution

The fourth proportional to 395,794.60, 593,691.90 and 159,015.40 is: 238,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,794.60 : 593,691.90 = 159,015.40 : x
  2. Step 2: Convert to fraction form
    395,794.60/593,691.90 = 159,015.40/x
  3. Step 3: Cross multiply
    395,794.60x = 593,691.90 × 159,015.40
  4. Step 4: Simplify right side
    395,794.60x = 94,406,154,955.26
  5. Step 5: Solve for x
    x = 94,406,154,955.26/395,794.60
  6. Step 6: Final answer
    x = 238,523.10

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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.