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Finding the Fourth Proportional to 944.09, 1,303.47 and 590.54

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Solution

The fourth proportional to 944.09, 1,303.47 and 590.54 is: 815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.09 : 1,303.47 = 590.54 : x
  2. Step 2: Convert to fraction form
    944.09/1,303.47 = 590.54/x
  3. Step 3: Cross multiply
    944.09x = 1,303.47 × 590.54
  4. Step 4: Simplify right side
    944.09x = 769,748.22
  5. Step 5: Solve for x
    x = 769,748.22/944.09
  6. Step 6: Final answer
    x = 815.34

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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.