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Finding the Fourth Proportional to 768,119.88, 1,060,195.16 and 466,566.60

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Solution

The fourth proportional to 768,119.88, 1,060,195.16 and 466,566.60 is: 643,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,119.88 : 1,060,195.16 = 466,566.60 : x
  2. Step 2: Convert to fraction form
    768,119.88/1,060,195.16 = 466,566.60/x
  3. Step 3: Cross multiply
    768,119.88x = 1,060,195.16 × 466,566.60
  4. Step 4: Simplify right side
    768,119.88x = 494,651,651,137.66
  5. Step 5: Solve for x
    x = 494,651,651,137.66/768,119.88
  6. Step 6: Final answer
    x = 643,977.15

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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.