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Finding the Fourth Proportional to 411,857.73, 568,070.61 and 377,975.66

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Solution

The fourth proportional to 411,857.73, 568,070.61 and 377,975.66 is: 521,337.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,857.73 : 568,070.61 = 377,975.66 : x
  2. Step 2: Convert to fraction form
    411,857.73/568,070.61 = 377,975.66/x
  3. Step 3: Cross multiply
    411,857.73x = 568,070.61 × 377,975.66
  4. Step 4: Simplify right side
    411,857.73x = 214,716,860,901.00
  5. Step 5: Solve for x
    x = 214,716,860,901.00/411,857.73
  6. Step 6: Final answer
    x = 521,337.46

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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.