Home / 1,383,698.58-1,909,500.93-780,082.26

Finding the Fourth Proportional to 1,383,698.58, 1,909,500.93 and 780,082.26

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Solution

The fourth proportional to 1,383,698.58, 1,909,500.93 and 780,082.26 is: 1,076,511.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,698.58 : 1,909,500.93 = 780,082.26 : x
  2. Step 2: Convert to fraction form
    1,383,698.58/1,909,500.93 = 780,082.26/x
  3. Step 3: Cross multiply
    1,383,698.58x = 1,909,500.93 × 780,082.26
  4. Step 4: Simplify right side
    1,383,698.58x = 1,489,567,800,946.50
  5. Step 5: Solve for x
    x = 1,489,567,800,946.50/1,383,698.58
  6. Step 6: Final answer
    x = 1,076,511.77

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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.