Home / 288,684.37-433,147.66-128,650.05

Finding the Fourth Proportional to 288,684.37, 433,147.66 and 128,650.05

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Solution

The fourth proportional to 288,684.37, 433,147.66 and 128,650.05 is: 193,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,684.37 : 433,147.66 = 128,650.05 : x
  2. Step 2: Convert to fraction form
    288,684.37/433,147.66 = 128,650.05/x
  3. Step 3: Cross multiply
    288,684.37x = 433,147.66 × 128,650.05
  4. Step 4: Simplify right side
    288,684.37x = 55,724,468,556.00
  5. Step 5: Solve for x
    x = 55,724,468,556.00/288,684.37
  6. Step 6: Final answer
    x = 193,029.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.