Home / 689,923.80-952,093.26-388,117.80

Finding the Fourth Proportional to 689,923.80, 952,093.26 and 388,117.80

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Solution

The fourth proportional to 689,923.80, 952,093.26 and 388,117.80 is: 535,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,923.80 : 952,093.26 = 388,117.80 : x
  2. Step 2: Convert to fraction form
    689,923.80/952,093.26 = 388,117.80/x
  3. Step 3: Cross multiply
    689,923.80x = 952,093.26 × 388,117.80
  4. Step 4: Simplify right side
    689,923.80x = 369,524,341,466.03
  5. Step 5: Solve for x
    x = 369,524,341,466.03/689,923.80
  6. Step 6: Final answer
    x = 535,601.67

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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.