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Finding the Fourth Proportional to 627,745.80, 941,618.70 and 581,665.80

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Solution

The fourth proportional to 627,745.80, 941,618.70 and 581,665.80 is: 872,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,745.80 : 941,618.70 = 581,665.80 : x
  2. Step 2: Convert to fraction form
    627,745.80/941,618.70 = 581,665.80/x
  3. Step 3: Cross multiply
    627,745.80x = 941,618.70 × 581,665.80
  4. Step 4: Simplify right side
    627,745.80x = 547,707,394,430.46
  5. Step 5: Solve for x
    x = 547,707,394,430.46/627,745.80
  6. Step 6: Final answer
    x = 872,498.70

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Double scale
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Similar ratio
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1.5x scale

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.