Home / 1,242,359.35-1,863,580.70-343,725.83

Finding the Fourth Proportional to 1,242,359.35, 1,863,580.70 and 343,725.83

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Solution

The fourth proportional to 1,242,359.35, 1,863,580.70 and 343,725.83 is: 515,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,359.35 : 1,863,580.70 = 343,725.83 : x
  2. Step 2: Convert to fraction form
    1,242,359.35/1,863,580.70 = 343,725.83/x
  3. Step 3: Cross multiply
    1,242,359.35x = 1,863,580.70 × 343,725.83
  4. Step 4: Simplify right side
    1,242,359.35x = 640,560,821,409.32
  5. Step 5: Solve for x
    x = 640,560,821,409.32/1,242,359.35
  6. Step 6: Final answer
    x = 515,600.27

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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.