Home / 628,706.51-943,060.07-207,982.38

Finding the Fourth Proportional to 628,706.51, 943,060.07 and 207,982.38

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Solution

The fourth proportional to 628,706.51, 943,060.07 and 207,982.38 is: 311,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,706.51 : 943,060.07 = 207,982.38 : x
  2. Step 2: Convert to fraction form
    628,706.51/943,060.07 = 207,982.38/x
  3. Step 3: Cross multiply
    628,706.51x = 943,060.07 × 207,982.38
  4. Step 4: Simplify right side
    628,706.51x = 196,139,878,361.52
  5. Step 5: Solve for x
    x = 196,139,878,361.52/628,706.51
  6. Step 6: Final answer
    x = 311,973.67

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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.