Home / 1,259,500.08-1,738,128.20-686,540.24

Finding the Fourth Proportional to 1,259,500.08, 1,738,128.20 and 686,540.24

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Solution

The fourth proportional to 1,259,500.08, 1,738,128.20 and 686,540.24 is: 947,435.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,500.08 : 1,738,128.20 = 686,540.24 : x
  2. Step 2: Convert to fraction form
    1,259,500.08/1,738,128.20 = 686,540.24/x
  3. Step 3: Cross multiply
    1,259,500.08x = 1,738,128.20 × 686,540.24
  4. Step 4: Simplify right side
    1,259,500.08x = 1,193,294,939,455.43
  5. Step 5: Solve for x
    x = 1,193,294,939,455.43/1,259,500.08
  6. Step 6: Final answer
    x = 947,435.38

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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.