Home / 678,611.44-936,442.38-372,628.27

Finding the Fourth Proportional to 678,611.44, 936,442.38 and 372,628.27

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Solution

The fourth proportional to 678,611.44, 936,442.38 and 372,628.27 is: 514,204.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,611.44 : 936,442.38 = 372,628.27 : x
  2. Step 2: Convert to fraction form
    678,611.44/936,442.38 = 372,628.27/x
  3. Step 3: Cross multiply
    678,611.44x = 936,442.38 × 372,628.27
  4. Step 4: Simplify right side
    678,611.44x = 348,944,904,014.08
  5. Step 5: Solve for x
    x = 348,944,904,014.08/678,611.44
  6. Step 6: Final answer
    x = 514,204.28

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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.