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Finding the Fourth Proportional to 1,495.36, 2,062.80 and 874.24

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Solution

The fourth proportional to 1,495.36, 2,062.80 and 874.24 is: 1,205.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.36 : 2,062.80 = 874.24 : x
  2. Step 2: Convert to fraction form
    1,495.36/2,062.80 = 874.24/x
  3. Step 3: Cross multiply
    1,495.36x = 2,062.80 × 874.24
  4. Step 4: Simplify right side
    1,495.36x = 1,803,382.27
  5. Step 5: Solve for x
    x = 1,803,382.27/1,495.36
  6. Step 6: Final answer
    x = 1,205.99

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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.