Home / 814,427.56-1,123,872.12-451,847.56

Finding the Fourth Proportional to 814,427.56, 1,123,872.12 and 451,847.56

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Solution

The fourth proportional to 814,427.56, 1,123,872.12 and 451,847.56 is: 623,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,427.56 : 1,123,872.12 = 451,847.56 : x
  2. Step 2: Convert to fraction form
    814,427.56/1,123,872.12 = 451,847.56/x
  3. Step 3: Cross multiply
    814,427.56x = 1,123,872.12 × 451,847.56
  4. Step 4: Simplify right side
    814,427.56x = 507,818,875,174.03
  5. Step 5: Solve for x
    x = 507,818,875,174.03/814,427.56
  6. Step 6: Final answer
    x = 623,528.60

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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.