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Finding the Fourth Proportional to 1,466.64, 2,199.32 and 554

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Solution

The fourth proportional to 1,466.64, 2,199.32 and 554 is: 830.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,466.64 : 2,199.32 = 554 : x
  2. Step 2: Convert to fraction form
    1,466.64/2,199.32 = 554/x
  3. Step 3: Cross multiply
    1,466.64x = 2,199.32 × 554
  4. Step 4: Simplify right side
    1,466.64x = 1,218,423.28
  5. Step 5: Solve for x
    x = 1,218,423.28/1,466.64
  6. Step 6: Final answer
    x = 830.76

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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.