Home / 663,868.31-994,913.01-621,353.03

Finding the Fourth Proportional to 663,868.31, 994,913.01 and 621,353.03

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Solution

The fourth proportional to 663,868.31, 994,913.01 and 621,353.03 is: 931,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,868.31 : 994,913.01 = 621,353.03 : x
  2. Step 2: Convert to fraction form
    663,868.31/994,913.01 = 621,353.03/x
  3. Step 3: Cross multiply
    663,868.31x = 994,913.01 × 621,353.03
  4. Step 4: Simplify right side
    663,868.31x = 618,192,208,375.36
  5. Step 5: Solve for x
    x = 618,192,208,375.36/663,868.31
  6. Step 6: Final answer
    x = 931,197.05

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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.