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Finding the Fourth Proportional to 956.67, 1,435.07 and 307.32

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Solution

The fourth proportional to 956.67, 1,435.07 and 307.32 is: 461.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.67 : 1,435.07 = 307.32 : x
  2. Step 2: Convert to fraction form
    956.67/1,435.07 = 307.32/x
  3. Step 3: Cross multiply
    956.67x = 1,435.07 × 307.32
  4. Step 4: Simplify right side
    956.67x = 441,025.71
  5. Step 5: Solve for x
    x = 441,025.71/956.67
  6. Step 6: Final answer
    x = 461.00

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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.