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Finding the Fourth Proportional to 975.96, 1,346.52 and 583.08

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Solution

The fourth proportional to 975.96, 1,346.52 and 583.08 is: 804.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.96 : 1,346.52 = 583.08 : x
  2. Step 2: Convert to fraction form
    975.96/1,346.52 = 583.08/x
  3. Step 3: Cross multiply
    975.96x = 1,346.52 × 583.08
  4. Step 4: Simplify right side
    975.96x = 785,128.88
  5. Step 5: Solve for x
    x = 785,128.88/975.96
  6. Step 6: Final answer
    x = 804.47

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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.