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Finding the Fourth Proportional to 1,743.14, 2,405.60 and 957.22

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Solution

The fourth proportional to 1,743.14, 2,405.60 and 957.22 is: 1,321.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743.14 : 2,405.60 = 957.22 : x
  2. Step 2: Convert to fraction form
    1,743.14/2,405.60 = 957.22/x
  3. Step 3: Cross multiply
    1,743.14x = 2,405.60 × 957.22
  4. Step 4: Simplify right side
    1,743.14x = 2,302,688.43
  5. Step 5: Solve for x
    x = 2,302,688.43/1,743.14
  6. Step 6: Final answer
    x = 1,321.00

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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.