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Finding the Fourth Proportional to 963.66, 1,437.93 and 904.88

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Solution

The fourth proportional to 963.66, 1,437.93 and 904.88 is: 1,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.66 : 1,437.93 = 904.88 : x
  2. Step 2: Convert to fraction form
    963.66/1,437.93 = 904.88/x
  3. Step 3: Cross multiply
    963.66x = 1,437.93 × 904.88
  4. Step 4: Simplify right side
    963.66x = 1,301,154.10
  5. Step 5: Solve for x
    x = 1,301,154.10/963.66
  6. Step 6: Final answer
    x = 1,350.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.