Home / 1,285,065.86-1,773,401.45-712,115.60

Finding the Fourth Proportional to 1,285,065.86, 1,773,401.45 and 712,115.60

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Solution

The fourth proportional to 1,285,065.86, 1,773,401.45 and 712,115.60 is: 982,725.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,065.86 : 1,773,401.45 = 712,115.60 : x
  2. Step 2: Convert to fraction form
    1,285,065.86/1,773,401.45 = 712,115.60/x
  3. Step 3: Cross multiply
    1,285,065.86x = 1,773,401.45 × 712,115.60
  4. Step 4: Simplify right side
    1,285,065.86x = 1,262,866,825,180.03
  5. Step 5: Solve for x
    x = 1,262,866,825,180.03/1,285,065.86
  6. Step 6: Final answer
    x = 982,725.38

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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.