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Finding the Fourth Proportional to 1,482.88, 2,224.16 and 616.32

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Solution

The fourth proportional to 1,482.88, 2,224.16 and 616.32 is: 924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.88 : 2,224.16 = 616.32 : x
  2. Step 2: Convert to fraction form
    1,482.88/2,224.16 = 616.32/x
  3. Step 3: Cross multiply
    1,482.88x = 2,224.16 × 616.32
  4. Step 4: Simplify right side
    1,482.88x = 1,370,794.29
  5. Step 5: Solve for x
    x = 1,370,794.29/1,482.88
  6. Step 6: Final answer
    x = 924.41

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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.