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Finding the Fourth Proportional to 474,477.60, 711,742.32 and 158,905.92

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Solution

The fourth proportional to 474,477.60, 711,742.32 and 158,905.92 is: 238,367.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,477.60 : 711,742.32 = 158,905.92 : x
  2. Step 2: Convert to fraction form
    474,477.60/711,742.32 = 158,905.92/x
  3. Step 3: Cross multiply
    474,477.60x = 711,742.32 × 158,905.92
  4. Step 4: Simplify right side
    474,477.60x = 113,100,068,162.53
  5. Step 5: Solve for x
    x = 113,100,068,162.53/474,477.60
  6. Step 6: Final answer
    x = 238,367.56

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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.