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Finding the Fourth Proportional to 418,355.13, 626,843.07 and 241,011.30

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Solution

The fourth proportional to 418,355.13, 626,843.07 and 241,011.30 is: 361,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,355.13 : 626,843.07 = 241,011.30 : x
  2. Step 2: Convert to fraction form
    418,355.13/626,843.07 = 241,011.30/x
  3. Step 3: Cross multiply
    418,355.13x = 626,843.07 × 241,011.30
  4. Step 4: Simplify right side
    418,355.13x = 151,076,263,196.69
  5. Step 5: Solve for x
    x = 151,076,263,196.69/418,355.13
  6. Step 6: Final answer
    x = 361,119.66

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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.