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Finding the Fourth Proportional to 418,994.17, 628,528.29 and 119,468.32

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Solution

The fourth proportional to 418,994.17, 628,528.29 and 119,468.32 is: 179,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,994.17 : 628,528.29 = 119,468.32 : x
  2. Step 2: Convert to fraction form
    418,994.17/628,528.29 = 119,468.32/x
  3. Step 3: Cross multiply
    418,994.17x = 628,528.29 × 119,468.32
  4. Step 4: Simplify right side
    418,994.17x = 75,089,218,878.77
  5. Step 5: Solve for x
    x = 75,089,218,878.77/418,994.17
  6. Step 6: Final answer
    x = 179,213.04

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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.