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Finding the Fourth Proportional to 1,676.08, 2,312.04 and 1,054

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Solution

The fourth proportional to 1,676.08, 2,312.04 and 1,054 is: 1,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.08 : 2,312.04 = 1,054 : x
  2. Step 2: Convert to fraction form
    1,676.08/2,312.04 = 1,054/x
  3. Step 3: Cross multiply
    1,676.08x = 2,312.04 × 1,054
  4. Step 4: Simplify right side
    1,676.08x = 2,436,890.16
  5. Step 5: Solve for x
    x = 2,436,890.16/1,676.08
  6. Step 6: Final answer
    x = 1,453.92

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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.