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Finding the Fourth Proportional to 964.04, 1,331.05 and 632.93

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Solution

The fourth proportional to 964.04, 1,331.05 and 632.93 is: 873.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.04 : 1,331.05 = 632.93 : x
  2. Step 2: Convert to fraction form
    964.04/1,331.05 = 632.93/x
  3. Step 3: Cross multiply
    964.04x = 1,331.05 × 632.93
  4. Step 4: Simplify right side
    964.04x = 842,463.22
  5. Step 5: Solve for x
    x = 842,463.22/964.04
  6. Step 6: Final answer
    x = 873.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.