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Finding the Fourth Proportional to 1,766.32, 2,646.02 and 943.50

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Solution

The fourth proportional to 1,766.32, 2,646.02 and 943.50 is: 1,413.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766.32 : 2,646.02 = 943.50 : x
  2. Step 2: Convert to fraction form
    1,766.32/2,646.02 = 943.50/x
  3. Step 3: Cross multiply
    1,766.32x = 2,646.02 × 943.50
  4. Step 4: Simplify right side
    1,766.32x = 2,496,519.87
  5. Step 5: Solve for x
    x = 2,496,519.87/1,766.32
  6. Step 6: Final answer
    x = 1,413.40

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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.