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Finding the Fourth Proportional to 627,541.60, 866,012.88 and 341,061.92

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Solution

The fourth proportional to 627,541.60, 866,012.88 and 341,061.92 is: 470,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,541.60 : 866,012.88 = 341,061.92 : x
  2. Step 2: Convert to fraction form
    627,541.60/866,012.88 = 341,061.92/x
  3. Step 3: Cross multiply
    627,541.60x = 866,012.88 × 341,061.92
  4. Step 4: Simplify right side
    627,541.60x = 295,364,015,597.53
  5. Step 5: Solve for x
    x = 295,364,015,597.53/627,541.60
  6. Step 6: Final answer
    x = 470,668.42

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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.