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Finding the Fourth Proportional to 975.35, 1,346.15 and 582.59

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Solution

The fourth proportional to 975.35, 1,346.15 and 582.59 is: 804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.35 : 1,346.15 = 582.59 : x
  2. Step 2: Convert to fraction form
    975.35/1,346.15 = 582.59/x
  3. Step 3: Cross multiply
    975.35x = 1,346.15 × 582.59
  4. Step 4: Simplify right side
    975.35x = 784,253.53
  5. Step 5: Solve for x
    x = 784,253.53/975.35
  6. Step 6: Final answer
    x = 804.07

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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.