Home / 831,986.56-1,248,166.55-263,401.66

Finding the Fourth Proportional to 831,986.56, 1,248,166.55 and 263,401.66

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Solution

The fourth proportional to 831,986.56, 1,248,166.55 and 263,401.66 is: 395,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,986.56 : 1,248,166.55 = 263,401.66 : x
  2. Step 2: Convert to fraction form
    831,986.56/1,248,166.55 = 263,401.66/x
  3. Step 3: Cross multiply
    831,986.56x = 1,248,166.55 × 263,401.66
  4. Step 4: Simplify right side
    831,986.56x = 328,769,141,226.47
  5. Step 5: Solve for x
    x = 328,769,141,226.47/831,986.56
  6. Step 6: Final answer
    x = 395,161.60

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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.