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Finding the Fourth Proportional to 418,175.20, 577,084.54 and 227,188.54

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Solution

The fourth proportional to 418,175.20, 577,084.54 and 227,188.54 is: 313,521.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,175.20 : 577,084.54 = 227,188.54 : x
  2. Step 2: Convert to fraction form
    418,175.20/577,084.54 = 227,188.54/x
  3. Step 3: Cross multiply
    418,175.20x = 577,084.54 × 227,188.54
  4. Step 4: Simplify right side
    418,175.20x = 131,106,994,099.17
  5. Step 5: Solve for x
    x = 131,106,994,099.17/418,175.20
  6. Step 6: Final answer
    x = 313,521.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.