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Finding the Fourth Proportional to 1,776.94, 2,453 and 1,030.75

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Solution

The fourth proportional to 1,776.94, 2,453 and 1,030.75 is: 1,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.94 : 2,453 = 1,030.75 : x
  2. Step 2: Convert to fraction form
    1,776.94/2,453 = 1,030.75/x
  3. Step 3: Cross multiply
    1,776.94x = 2,453 × 1,030.75
  4. Step 4: Simplify right side
    1,776.94x = 2,528,429.75
  5. Step 5: Solve for x
    x = 2,528,429.75/1,776.94
  6. Step 6: Final answer
    x = 1,422.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.