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Finding the Fourth Proportional to 418,009.96, 627,991.98 and 395,352.64

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Solution

The fourth proportional to 418,009.96, 627,991.98 and 395,352.64 is: 593,953.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,009.96 : 627,991.98 = 395,352.64 : x
  2. Step 2: Convert to fraction form
    418,009.96/627,991.98 = 395,352.64/x
  3. Step 3: Cross multiply
    418,009.96x = 627,991.98 × 395,352.64
  4. Step 4: Simplify right side
    418,009.96x = 248,278,287,191.83
  5. Step 5: Solve for x
    x = 248,278,287,191.83/418,009.96
  6. Step 6: Final answer
    x = 593,953.04

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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.