Home / 831,992.90-1,247,993.00-263,376.79

Finding the Fourth Proportional to 831,992.90, 1,247,993.00 and 263,376.79

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Solution

The fourth proportional to 831,992.90, 1,247,993.00 and 263,376.79 is: 395,066.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,992.90 : 1,247,993.00 = 263,376.79 : x
  2. Step 2: Convert to fraction form
    831,992.90/1,247,993.00 = 263,376.79/x
  3. Step 3: Cross multiply
    831,992.90x = 1,247,993.00 × 263,376.79
  4. Step 4: Simplify right side
    831,992.90x = 328,692,387,574.01
  5. Step 5: Solve for x
    x = 328,692,387,574.01/831,992.90
  6. Step 6: Final answer
    x = 395,066.34

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Double scale
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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.