Home / 831,704.80-1,247,557.20-779,216.80

Finding the Fourth Proportional to 831,704.80, 1,247,557.20 and 779,216.80

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Solution

The fourth proportional to 831,704.80, 1,247,557.20 and 779,216.80 is: 1,168,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,704.80 : 1,247,557.20 = 779,216.80 : x
  2. Step 2: Convert to fraction form
    831,704.80/1,247,557.20 = 779,216.80/x
  3. Step 3: Cross multiply
    831,704.80x = 1,247,557.20 × 779,216.80
  4. Step 4: Simplify right side
    831,704.80x = 972,117,529,200.96
  5. Step 5: Solve for x
    x = 972,117,529,200.96/831,704.80
  6. Step 6: Final answer
    x = 1,168,825.20

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Double scale
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Similar ratio
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1.5x scale

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.