Home / 1,189,076.37-1,783,609.68-430,740.27

Finding the Fourth Proportional to 1,189,076.37, 1,783,609.68 and 430,740.27

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Solution

The fourth proportional to 1,189,076.37, 1,783,609.68 and 430,740.27 is: 646,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,076.37 : 1,783,609.68 = 430,740.27 : x
  2. Step 2: Convert to fraction form
    1,189,076.37/1,783,609.68 = 430,740.27/x
  3. Step 3: Cross multiply
    1,189,076.37x = 1,783,609.68 × 430,740.27
  4. Step 4: Simplify right side
    1,189,076.37x = 768,272,515,137.81
  5. Step 5: Solve for x
    x = 768,272,515,137.81/1,189,076.37
  6. Step 6: Final answer
    x = 646,108.64

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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.