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Finding the Fourth Proportional to 957.35, 1,426.40 and 894.48

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Solution

The fourth proportional to 957.35, 1,426.40 and 894.48 is: 1,332.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.35 : 1,426.40 = 894.48 : x
  2. Step 2: Convert to fraction form
    957.35/1,426.40 = 894.48/x
  3. Step 3: Cross multiply
    957.35x = 1,426.40 × 894.48
  4. Step 4: Simplify right side
    957.35x = 1,275,881.80
  5. Step 5: Solve for x
    x = 1,275,881.80/957.35
  6. Step 6: Final answer
    x = 1,332.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.