Home / 919,458.07-1,379,173.26-413,661.87

Finding the Fourth Proportional to 919,458.07, 1,379,173.26 and 413,661.87

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Solution

The fourth proportional to 919,458.07, 1,379,173.26 and 413,661.87 is: 620,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,458.07 : 1,379,173.26 = 413,661.87 : x
  2. Step 2: Convert to fraction form
    919,458.07/1,379,173.26 = 413,661.87/x
  3. Step 3: Cross multiply
    919,458.07x = 1,379,173.26 × 413,661.87
  4. Step 4: Simplify right side
    919,458.07x = 570,511,389,785.60
  5. Step 5: Solve for x
    x = 570,511,389,785.60/919,458.07
  6. Step 6: Final answer
    x = 620,486.58

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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.