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Finding the Fourth Proportional to 956.77, 1,431.54 and 566.98

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Solution

The fourth proportional to 956.77, 1,431.54 and 566.98 is: 848.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.77 : 1,431.54 = 566.98 : x
  2. Step 2: Convert to fraction form
    956.77/1,431.54 = 566.98/x
  3. Step 3: Cross multiply
    956.77x = 1,431.54 × 566.98
  4. Step 4: Simplify right side
    956.77x = 811,651.71
  5. Step 5: Solve for x
    x = 811,651.71/956.77
  6. Step 6: Final answer
    x = 848.32

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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.