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Finding the Fourth Proportional to 2,259.90, 3,389.46 and 616.24

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Solution

The fourth proportional to 2,259.90, 3,389.46 and 616.24 is: 924.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.90 : 3,389.46 = 616.24 : x
  2. Step 2: Convert to fraction form
    2,259.90/3,389.46 = 616.24/x
  3. Step 3: Cross multiply
    2,259.90x = 3,389.46 × 616.24
  4. Step 4: Simplify right side
    2,259.90x = 2,088,720.83
  5. Step 5: Solve for x
    x = 2,088,720.83/2,259.90
  6. Step 6: Final answer
    x = 924.25

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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.