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Finding the Fourth Proportional to 1,476.84, 2,037.38 and 855.48

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Solution

The fourth proportional to 1,476.84, 2,037.38 and 855.48 is: 1,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.84 : 2,037.38 = 855.48 : x
  2. Step 2: Convert to fraction form
    1,476.84/2,037.38 = 855.48/x
  3. Step 3: Cross multiply
    1,476.84x = 2,037.38 × 855.48
  4. Step 4: Simplify right side
    1,476.84x = 1,742,937.84
  5. Step 5: Solve for x
    x = 1,742,937.84/1,476.84
  6. Step 6: Final answer
    x = 1,180.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.