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Finding the Fourth Proportional to 1,674.15, 2,310.03 and 956.36

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Solution

The fourth proportional to 1,674.15, 2,310.03 and 956.36 is: 1,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.15 : 2,310.03 = 956.36 : x
  2. Step 2: Convert to fraction form
    1,674.15/2,310.03 = 956.36/x
  3. Step 3: Cross multiply
    1,674.15x = 2,310.03 × 956.36
  4. Step 4: Simplify right side
    1,674.15x = 2,209,208.74
  5. Step 5: Solve for x
    x = 2,209,208.74/1,674.15
  6. Step 6: Final answer
    x = 1,319.60

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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.