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Finding the Fourth Proportional to 418,814.30, 627,528.90 and 241,011.20

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Solution

The fourth proportional to 418,814.30, 627,528.90 and 241,011.20 is: 361,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,814.30 : 627,528.90 = 241,011.20 : x
  2. Step 2: Convert to fraction form
    418,814.30/627,528.90 = 241,011.20/x
  3. Step 3: Cross multiply
    418,814.30x = 627,528.90 × 241,011.20
  4. Step 4: Simplify right side
    418,814.30x = 151,241,493,223.68
  5. Step 5: Solve for x
    x = 151,241,493,223.68/418,814.30
  6. Step 6: Final answer
    x = 361,118.26

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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.