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Finding the Fourth Proportional to 475,907.20, 713,102.56 and 251,258.56

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Solution

The fourth proportional to 475,907.20, 713,102.56 and 251,258.56 is: 376,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,907.20 : 713,102.56 = 251,258.56 : x
  2. Step 2: Convert to fraction form
    475,907.20/713,102.56 = 251,258.56/x
  3. Step 3: Cross multiply
    475,907.20x = 713,102.56 × 251,258.56
  4. Step 4: Simplify right side
    475,907.20x = 179,173,122,357.91
  5. Step 5: Solve for x
    x = 179,173,122,357.91/475,907.20
  6. Step 6: Final answer
    x = 376,487.52

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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.