Home / 628,706.63-943,060.25-207,982.51

Finding the Fourth Proportional to 628,706.63, 943,060.25 and 207,982.51

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Solution

The fourth proportional to 628,706.63, 943,060.25 and 207,982.51 is: 311,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,706.63 : 943,060.25 = 207,982.51 : x
  2. Step 2: Convert to fraction form
    628,706.63/943,060.25 = 207,982.51/x
  3. Step 3: Cross multiply
    628,706.63x = 943,060.25 × 207,982.51
  4. Step 4: Simplify right side
    628,706.63x = 196,140,037,876.23
  5. Step 5: Solve for x
    x = 196,140,037,876.23/628,706.63
  6. Step 6: Final answer
    x = 311,973.87

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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.