Home / 811,616.56-1,216,633.44-338,437.12

Finding the Fourth Proportional to 811,616.56, 1,216,633.44 and 338,437.12

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Solution

The fourth proportional to 811,616.56, 1,216,633.44 and 338,437.12 is: 507,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,616.56 : 1,216,633.44 = 338,437.12 : x
  2. Step 2: Convert to fraction form
    811,616.56/1,216,633.44 = 338,437.12/x
  3. Step 3: Cross multiply
    811,616.56x = 1,216,633.44 × 338,437.12
  4. Step 4: Simplify right side
    811,616.56x = 411,753,917,529.29
  5. Step 5: Solve for x
    x = 411,753,917,529.29/811,616.56
  6. Step 6: Final answer
    x = 507,325.67

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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.