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Finding the Fourth Proportional to 3,092.73, 4,639.10 and 784.23

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Solution

The fourth proportional to 3,092.73, 4,639.10 and 784.23 is: 1,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,092.73 : 4,639.10 = 784.23 : x
  2. Step 2: Convert to fraction form
    3,092.73/4,639.10 = 784.23/x
  3. Step 3: Cross multiply
    3,092.73x = 4,639.10 × 784.23
  4. Step 4: Simplify right side
    3,092.73x = 3,638,117.47
  5. Step 5: Solve for x
    x = 3,638,117.47/3,092.73
  6. Step 6: Final answer
    x = 1,176.35

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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.