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Finding the Fourth Proportional to 1,153.98, 1,730.13 and 460.44

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Solution

The fourth proportional to 1,153.98, 1,730.13 and 460.44 is: 690.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.98 : 1,730.13 = 460.44 : x
  2. Step 2: Convert to fraction form
    1,153.98/1,730.13 = 460.44/x
  3. Step 3: Cross multiply
    1,153.98x = 1,730.13 × 460.44
  4. Step 4: Simplify right side
    1,153.98x = 796,621.06
  5. Step 5: Solve for x
    x = 796,621.06/1,153.98
  6. Step 6: Final answer
    x = 690.32

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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.