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Finding the Fourth Proportional to 3,706.84, 5,558.28 and 1,240.84

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Solution

The fourth proportional to 3,706.84, 5,558.28 and 1,240.84 is: 1,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.84 : 5,558.28 = 1,240.84 : x
  2. Step 2: Convert to fraction form
    3,706.84/5,558.28 = 1,240.84/x
  3. Step 3: Cross multiply
    3,706.84x = 5,558.28 × 1,240.84
  4. Step 4: Simplify right side
    3,706.84x = 6,896,936.16
  5. Step 5: Solve for x
    x = 6,896,936.16/3,706.84
  6. Step 6: Final answer
    x = 1,860.60

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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.