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Finding the Fourth Proportional to 478,594.44, 717,712.86 and 158,687.64

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Solution

The fourth proportional to 478,594.44, 717,712.86 and 158,687.64 is: 237,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,594.44 : 717,712.86 = 158,687.64 : x
  2. Step 2: Convert to fraction form
    478,594.44/717,712.86 = 158,687.64/x
  3. Step 3: Cross multiply
    478,594.44x = 717,712.86 × 158,687.64
  4. Step 4: Simplify right side
    478,594.44x = 113,892,159,951.05
  5. Step 5: Solve for x
    x = 113,892,159,951.05/478,594.44
  6. Step 6: Final answer
    x = 237,972.18

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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.