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Finding the Fourth Proportional to 677,993.13, 935,562.37 and 406,054.06

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Solution

The fourth proportional to 677,993.13, 935,562.37 and 406,054.06 is: 560,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,993.13 : 935,562.37 = 406,054.06 : x
  2. Step 2: Convert to fraction form
    677,993.13/935,562.37 = 406,054.06/x
  3. Step 3: Cross multiply
    677,993.13x = 935,562.37 × 406,054.06
  4. Step 4: Simplify right side
    677,993.13x = 379,888,894,043.91
  5. Step 5: Solve for x
    x = 379,888,894,043.91/677,993.13
  6. Step 6: Final answer
    x = 560,313.78

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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.