Home / 943,900.05-1,303,064.91-639,584.67

Finding the Fourth Proportional to 943,900.05, 1,303,064.91 and 639,584.67

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Solution

The fourth proportional to 943,900.05, 1,303,064.91 and 639,584.67 is: 882,954.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,900.05 : 1,303,064.91 = 639,584.67 : x
  2. Step 2: Convert to fraction form
    943,900.05/1,303,064.91 = 639,584.67/x
  3. Step 3: Cross multiply
    943,900.05x = 1,303,064.91 × 639,584.67
  4. Step 4: Simplify right side
    943,900.05x = 833,420,340,450.93
  5. Step 5: Solve for x
    x = 833,420,340,450.93/943,900.05
  6. Step 6: Final answer
    x = 882,954.02

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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.