Home / 830,415.80-1,245,623.70-664,527.80

Finding the Fourth Proportional to 830,415.80, 1,245,623.70 and 664,527.80

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Solution

The fourth proportional to 830,415.80, 1,245,623.70 and 664,527.80 is: 996,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,415.80 : 1,245,623.70 = 664,527.80 : x
  2. Step 2: Convert to fraction form
    830,415.80/1,245,623.70 = 664,527.80/x
  3. Step 3: Cross multiply
    830,415.80x = 1,245,623.70 × 664,527.80
  4. Step 4: Simplify right side
    830,415.80x = 827,751,576,988.86
  5. Step 5: Solve for x
    x = 827,751,576,988.86/830,415.80
  6. Step 6: Final answer
    x = 996,791.70

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Similar ratio
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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.