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Finding the Fourth Proportional to 1,703.47, 2,350.96 and 957.38

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Solution

The fourth proportional to 1,703.47, 2,350.96 and 957.38 is: 1,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.47 : 2,350.96 = 957.38 : x
  2. Step 2: Convert to fraction form
    1,703.47/2,350.96 = 957.38/x
  3. Step 3: Cross multiply
    1,703.47x = 2,350.96 × 957.38
  4. Step 4: Simplify right side
    1,703.47x = 2,250,762.08
  5. Step 5: Solve for x
    x = 2,250,762.08/1,703.47
  6. Step 6: Final answer
    x = 1,321.28

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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.