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Finding the Fourth Proportional to 1,653.55, 2,479.74 and 483.22

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Solution

The fourth proportional to 1,653.55, 2,479.74 and 483.22 is: 724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.55 : 2,479.74 = 483.22 : x
  2. Step 2: Convert to fraction form
    1,653.55/2,479.74 = 483.22/x
  3. Step 3: Cross multiply
    1,653.55x = 2,479.74 × 483.22
  4. Step 4: Simplify right side
    1,653.55x = 1,198,259.96
  5. Step 5: Solve for x
    x = 1,198,259.96/1,653.55
  6. Step 6: Final answer
    x = 724.66

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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.