Home / 812,286-1,120,799.08-525,766.32

Finding the Fourth Proportional to 812,286, 1,120,799.08 and 525,766.32

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Solution

The fourth proportional to 812,286, 1,120,799.08 and 525,766.32 is: 725,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,286 : 1,120,799.08 = 525,766.32 : x
  2. Step 2: Convert to fraction form
    812,286/1,120,799.08 = 525,766.32/x
  3. Step 3: Cross multiply
    812,286x = 1,120,799.08 × 525,766.32
  4. Step 4: Simplify right side
    812,286x = 589,278,407,750.99
  5. Step 5: Solve for x
    x = 589,278,407,750.99/812,286
  6. Step 6: Final answer
    x = 725,456.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.