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Finding the Fourth Proportional to 957.76, 1,436.64 and 593.60

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Solution

The fourth proportional to 957.76, 1,436.64 and 593.60 is: 890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.76 : 1,436.64 = 593.60 : x
  2. Step 2: Convert to fraction form
    957.76/1,436.64 = 593.60/x
  3. Step 3: Cross multiply
    957.76x = 1,436.64 × 593.60
  4. Step 4: Simplify right side
    957.76x = 852,789.50
  5. Step 5: Solve for x
    x = 852,789.50/957.76
  6. Step 6: Final answer
    x = 890.40

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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.