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Finding the Fourth Proportional to 627,741.03, 866,350.35 and 355,779.73

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Solution

The fourth proportional to 627,741.03, 866,350.35 and 355,779.73 is: 491,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,741.03 : 866,350.35 = 355,779.73 : x
  2. Step 2: Convert to fraction form
    627,741.03/866,350.35 = 355,779.73/x
  3. Step 3: Cross multiply
    627,741.03x = 866,350.35 × 355,779.73
  4. Step 4: Simplify right side
    627,741.03x = 308,229,891,442.53
  5. Step 5: Solve for x
    x = 308,229,891,442.53/627,741.03
  6. Step 6: Final answer
    x = 491,014.41

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Double scale
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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.