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Finding the Fourth Proportional to 403,670.67, 605,506.85 and 379,008.48

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Solution

The fourth proportional to 403,670.67, 605,506.85 and 379,008.48 is: 568,513.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,670.67 : 605,506.85 = 379,008.48 : x
  2. Step 2: Convert to fraction form
    403,670.67/605,506.85 = 379,008.48/x
  3. Step 3: Cross multiply
    403,670.67x = 605,506.85 × 379,008.48
  4. Step 4: Simplify right side
    403,670.67x = 229,492,232,644.98
  5. Step 5: Solve for x
    x = 229,492,232,644.98/403,670.67
  6. Step 6: Final answer
    x = 568,513.52

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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.