Home / 1,189,041.88-1,783,558.01-430,705.87

Finding the Fourth Proportional to 1,189,041.88, 1,783,558.01 and 430,705.87

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Solution

The fourth proportional to 1,189,041.88, 1,783,558.01 and 430,705.87 is: 646,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,041.88 : 1,783,558.01 = 430,705.87 : x
  2. Step 2: Convert to fraction form
    1,189,041.88/1,783,558.01 = 430,705.87/x
  3. Step 3: Cross multiply
    1,189,041.88x = 1,783,558.01 × 430,705.87
  4. Step 4: Simplify right side
    1,189,041.88x = 768,188,901,010.39
  5. Step 5: Solve for x
    x = 768,188,901,010.39/1,189,041.88
  6. Step 6: Final answer
    x = 646,057.06

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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.