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Finding the Fourth Proportional to 627,849.20, 866,421.69 and 341,376.50

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Solution

The fourth proportional to 627,849.20, 866,421.69 and 341,376.50 is: 471,094.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,849.20 : 866,421.69 = 341,376.50 : x
  2. Step 2: Convert to fraction form
    627,849.20/866,421.69 = 341,376.50/x
  3. Step 3: Cross multiply
    627,849.20x = 866,421.69 × 341,376.50
  4. Step 4: Simplify right side
    627,849.20x = 295,776,004,056.29
  5. Step 5: Solve for x
    x = 295,776,004,056.29/627,849.20
  6. Step 6: Final answer
    x = 471,094.02

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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.