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Finding the Fourth Proportional to 3,411.84, 5,116.92 and 946.08

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Solution

The fourth proportional to 3,411.84, 5,116.92 and 946.08 is: 1,418.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.84 : 5,116.92 = 946.08 : x
  2. Step 2: Convert to fraction form
    3,411.84/5,116.92 = 946.08/x
  3. Step 3: Cross multiply
    3,411.84x = 5,116.92 × 946.08
  4. Step 4: Simplify right side
    3,411.84x = 4,841,015.67
  5. Step 5: Solve for x
    x = 4,841,015.67/3,411.84
  6. Step 6: Final answer
    x = 1,418.89

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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.