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Finding the Fourth Proportional to 700,879.03, 967,213.45 and 378,589.13

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Solution

The fourth proportional to 700,879.03, 967,213.45 and 378,589.13 is: 522,453.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,879.03 : 967,213.45 = 378,589.13 : x
  2. Step 2: Convert to fraction form
    700,879.03/967,213.45 = 378,589.13/x
  3. Step 3: Cross multiply
    700,879.03x = 967,213.45 × 378,589.13
  4. Step 4: Simplify right side
    700,879.03x = 366,176,499,479.52
  5. Step 5: Solve for x
    x = 366,176,499,479.52/700,879.03
  6. Step 6: Final answer
    x = 522,453.21

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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.