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Finding the Fourth Proportional to 1,684.68, 2,323.98 and 1,124.52

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Solution

The fourth proportional to 1,684.68, 2,323.98 and 1,124.52 is: 1,551.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.68 : 2,323.98 = 1,124.52 : x
  2. Step 2: Convert to fraction form
    1,684.68/2,323.98 = 1,124.52/x
  3. Step 3: Cross multiply
    1,684.68x = 2,323.98 × 1,124.52
  4. Step 4: Simplify right side
    1,684.68x = 2,613,361.99
  5. Step 5: Solve for x
    x = 2,613,361.99/1,684.68
  6. Step 6: Final answer
    x = 1,551.25

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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.