Home / 1,028,438.76-1,419,245.48-626,030.76

Finding the Fourth Proportional to 1,028,438.76, 1,419,245.48 and 626,030.76

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Solution

The fourth proportional to 1,028,438.76, 1,419,245.48 and 626,030.76 is: 863,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,438.76 : 1,419,245.48 = 626,030.76 : x
  2. Step 2: Convert to fraction form
    1,028,438.76/1,419,245.48 = 626,030.76/x
  3. Step 3: Cross multiply
    1,028,438.76x = 1,419,245.48 × 626,030.76
  4. Step 4: Simplify right side
    1,028,438.76x = 888,491,326,470.97
  5. Step 5: Solve for x
    x = 888,491,326,470.97/1,028,438.76
  6. Step 6: Final answer
    x = 863,922.44

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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.