Home / 813,338.11-1,122,406.57-450,816.44

Finding the Fourth Proportional to 813,338.11, 1,122,406.57 and 450,816.44

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Solution

The fourth proportional to 813,338.11, 1,122,406.57 and 450,816.44 is: 622,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,338.11 : 1,122,406.57 = 450,816.44 : x
  2. Step 2: Convert to fraction form
    813,338.11/1,122,406.57 = 450,816.44/x
  3. Step 3: Cross multiply
    813,338.11x = 1,122,406.57 × 450,816.44
  4. Step 4: Simplify right side
    813,338.11x = 505,999,329,071.50
  5. Step 5: Solve for x
    x = 505,999,329,071.50/813,338.11
  6. Step 6: Final answer
    x = 622,126.67

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Double scale
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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.