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Finding the Fourth Proportional to 677,993.38, 935,562.72 and 406,054.31

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Solution

The fourth proportional to 677,993.38, 935,562.72 and 406,054.31 is: 560,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,993.38 : 935,562.72 = 406,054.31 : x
  2. Step 2: Convert to fraction form
    677,993.38/935,562.72 = 406,054.31/x
  3. Step 3: Cross multiply
    677,993.38x = 935,562.72 × 406,054.31
  4. Step 4: Simplify right side
    677,993.38x = 379,889,268,023.24
  5. Step 5: Solve for x
    x = 379,889,268,023.24/677,993.38
  6. Step 6: Final answer
    x = 560,314.13

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1.5x scale

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.