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Finding the Fourth Proportional to 1,033.09, 1,549.73 and 416.64

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Solution

The fourth proportional to 1,033.09, 1,549.73 and 416.64 is: 625.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.09 : 1,549.73 = 416.64 : x
  2. Step 2: Convert to fraction form
    1,033.09/1,549.73 = 416.64/x
  3. Step 3: Cross multiply
    1,033.09x = 1,549.73 × 416.64
  4. Step 4: Simplify right side
    1,033.09x = 645,686.36
  5. Step 5: Solve for x
    x = 645,686.36/1,033.09
  6. Step 6: Final answer
    x = 625.01

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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.