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Finding the Fourth Proportional to 1,196.40, 1,794.60 and 924.12

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Solution

The fourth proportional to 1,196.40, 1,794.60 and 924.12 is: 1,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.40 : 1,794.60 = 924.12 : x
  2. Step 2: Convert to fraction form
    1,196.40/1,794.60 = 924.12/x
  3. Step 3: Cross multiply
    1,196.40x = 1,794.60 × 924.12
  4. Step 4: Simplify right side
    1,196.40x = 1,658,425.75
  5. Step 5: Solve for x
    x = 1,658,425.75/1,196.40
  6. Step 6: Final answer
    x = 1,386.18

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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.