Home / 1,286,511.40-1,930,688.70-539,093.80

Finding the Fourth Proportional to 1,286,511.40, 1,930,688.70 and 539,093.80

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Solution

The fourth proportional to 1,286,511.40, 1,930,688.70 and 539,093.80 is: 809,026.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,511.40 : 1,930,688.70 = 539,093.80 : x
  2. Step 2: Convert to fraction form
    1,286,511.40/1,930,688.70 = 539,093.80/x
  3. Step 3: Cross multiply
    1,286,511.40x = 1,930,688.70 × 539,093.80
  4. Step 4: Simplify right side
    1,286,511.40x = 1,040,822,307,900.06
  5. Step 5: Solve for x
    x = 1,040,822,307,900.06/1,286,511.40
  6. Step 6: Final answer
    x = 809,026.88

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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.