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Finding the Fourth Proportional to 377,455.25, 520,891.89 and 207,693.02

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Solution

The fourth proportional to 377,455.25, 520,891.89 and 207,693.02 is: 286,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,455.25 : 520,891.89 = 207,693.02 : x
  2. Step 2: Convert to fraction form
    377,455.25/520,891.89 = 207,693.02/x
  3. Step 3: Cross multiply
    377,455.25x = 520,891.89 × 207,693.02
  4. Step 4: Simplify right side
    377,455.25x = 108,185,609,727.61
  5. Step 5: Solve for x
    x = 108,185,609,727.61/377,455.25
  6. Step 6: Final answer
    x = 286,618.37

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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.