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Finding the Fourth Proportional to 955.48, 1,318.66 and 582.68

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Solution

The fourth proportional to 955.48, 1,318.66 and 582.68 is: 804.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.48 : 1,318.66 = 582.68 : x
  2. Step 2: Convert to fraction form
    955.48/1,318.66 = 582.68/x
  3. Step 3: Cross multiply
    955.48x = 1,318.66 × 582.68
  4. Step 4: Simplify right side
    955.48x = 768,356.81
  5. Step 5: Solve for x
    x = 768,356.81/955.48
  6. Step 6: Final answer
    x = 804.16

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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.