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Finding the Fourth Proportional to 1,653.54, 2,473.02 and 999.90

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Solution

The fourth proportional to 1,653.54, 2,473.02 and 999.90 is: 1,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.54 : 2,473.02 = 999.90 : x
  2. Step 2: Convert to fraction form
    1,653.54/2,473.02 = 999.90/x
  3. Step 3: Cross multiply
    1,653.54x = 2,473.02 × 999.90
  4. Step 4: Simplify right side
    1,653.54x = 2,472,772.70
  5. Step 5: Solve for x
    x = 2,472,772.70/1,653.54
  6. Step 6: Final answer
    x = 1,495.44

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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.