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Finding the Fourth Proportional to 556,625.88, 768,143.99 and 301,977

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Solution

The fourth proportional to 556,625.88, 768,143.99 and 301,977 is: 416,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,625.88 : 768,143.99 = 301,977 : x
  2. Step 2: Convert to fraction form
    556,625.88/768,143.99 = 301,977/x
  3. Step 3: Cross multiply
    556,625.88x = 768,143.99 × 301,977
  4. Step 4: Simplify right side
    556,625.88x = 231,961,818,423.17
  5. Step 5: Solve for x
    x = 231,961,818,423.17/556,625.88
  6. Step 6: Final answer
    x = 416,728.41

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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.