Home / 863,136.70-1,294,705.05-548,986.30

Finding the Fourth Proportional to 863,136.70, 1,294,705.05 and 548,986.30

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Solution

The fourth proportional to 863,136.70, 1,294,705.05 and 548,986.30 is: 823,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,136.70 : 1,294,705.05 = 548,986.30 : x
  2. Step 2: Convert to fraction form
    863,136.70/1,294,705.05 = 548,986.30/x
  3. Step 3: Cross multiply
    863,136.70x = 1,294,705.05 × 548,986.30
  4. Step 4: Simplify right side
    863,136.70x = 710,775,334,990.82
  5. Step 5: Solve for x
    x = 710,775,334,990.82/863,136.70
  6. Step 6: Final answer
    x = 823,479.45

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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.