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Finding the Fourth Proportional to 1,571.59, 2,357.36 and 955.46

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Solution

The fourth proportional to 1,571.59, 2,357.36 and 955.46 is: 1,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.59 : 2,357.36 = 955.46 : x
  2. Step 2: Convert to fraction form
    1,571.59/2,357.36 = 955.46/x
  3. Step 3: Cross multiply
    1,571.59x = 2,357.36 × 955.46
  4. Step 4: Simplify right side
    1,571.59x = 2,252,363.19
  5. Step 5: Solve for x
    x = 2,252,363.19/1,571.59
  6. Step 6: Final answer
    x = 1,433.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.