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Finding the Fourth Proportional to 702,782.88, 971,474.64 and 627,052.44

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Solution

The fourth proportional to 702,782.88, 971,474.64 and 627,052.44 is: 866,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,782.88 : 971,474.64 = 627,052.44 : x
  2. Step 2: Convert to fraction form
    702,782.88/971,474.64 = 627,052.44/x
  3. Step 3: Cross multiply
    702,782.88x = 971,474.64 × 627,052.44
  4. Step 4: Simplify right side
    702,782.88x = 609,165,543,410.12
  5. Step 5: Solve for x
    x = 609,165,543,410.12/702,782.88
  6. Step 6: Final answer
    x = 866,790.53

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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.