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Finding the Fourth Proportional to 1,750.74, 2,622.52 and 870.63

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Solution

The fourth proportional to 1,750.74, 2,622.52 and 870.63 is: 1,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.74 : 2,622.52 = 870.63 : x
  2. Step 2: Convert to fraction form
    1,750.74/2,622.52 = 870.63/x
  3. Step 3: Cross multiply
    1,750.74x = 2,622.52 × 870.63
  4. Step 4: Simplify right side
    1,750.74x = 2,283,244.59
  5. Step 5: Solve for x
    x = 2,283,244.59/1,750.74
  6. Step 6: Final answer
    x = 1,304.16

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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.