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Finding the Fourth Proportional to 478,600.08, 717,465.62 and 238,787.33

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Solution

The fourth proportional to 478,600.08, 717,465.62 and 238,787.33 is: 357,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,600.08 : 717,465.62 = 238,787.33 : x
  2. Step 2: Convert to fraction form
    478,600.08/717,465.62 = 238,787.33/x
  3. Step 3: Cross multiply
    478,600.08x = 717,465.62 × 238,787.33
  4. Step 4: Simplify right side
    478,600.08x = 171,321,694,985.33
  5. Step 5: Solve for x
    x = 171,321,694,985.33/478,600.08
  6. Step 6: Final answer
    x = 357,964.20

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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.