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Finding the Fourth Proportional to 2,326.84, 3,490.80 and 683.32

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Solution

The fourth proportional to 2,326.84, 3,490.80 and 683.32 is: 1,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.84 : 3,490.80 = 683.32 : x
  2. Step 2: Convert to fraction form
    2,326.84/3,490.80 = 683.32/x
  3. Step 3: Cross multiply
    2,326.84x = 3,490.80 × 683.32
  4. Step 4: Simplify right side
    2,326.84x = 2,385,333.46
  5. Step 5: Solve for x
    x = 2,385,333.46/2,326.84
  6. Step 6: Final answer
    x = 1,025.14

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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.