Home / 812,450.70-1,123,322.19-711,559.50

Finding the Fourth Proportional to 812,450.70, 1,123,322.19 and 711,559.50

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Solution

The fourth proportional to 812,450.70, 1,123,322.19 and 711,559.50 is: 983,826.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,450.70 : 1,123,322.19 = 711,559.50 : x
  2. Step 2: Convert to fraction form
    812,450.70/1,123,322.19 = 711,559.50/x
  3. Step 3: Cross multiply
    812,450.70x = 1,123,322.19 × 711,559.50
  4. Step 4: Simplify right side
    812,450.70x = 799,310,575,855.31
  5. Step 5: Solve for x
    x = 799,310,575,855.31/812,450.70
  6. Step 6: Final answer
    x = 983,826.56

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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.