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Finding the Fourth Proportional to 957.60, 1,435.46 and 471.33

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Solution

The fourth proportional to 957.60, 1,435.46 and 471.33 is: 706.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.60 : 1,435.46 = 471.33 : x
  2. Step 2: Convert to fraction form
    957.60/1,435.46 = 471.33/x
  3. Step 3: Cross multiply
    957.60x = 1,435.46 × 471.33
  4. Step 4: Simplify right side
    957.60x = 676,573.01
  5. Step 5: Solve for x
    x = 676,573.01/957.60
  6. Step 6: Final answer
    x = 706.53

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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.