Home / 710,921.22-1,065,438.66-311,126.68

Finding the Fourth Proportional to 710,921.22, 1,065,438.66 and 311,126.68

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Solution

The fourth proportional to 710,921.22, 1,065,438.66 and 311,126.68 is: 466,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,921.22 : 1,065,438.66 = 311,126.68 : x
  2. Step 2: Convert to fraction form
    710,921.22/1,065,438.66 = 311,126.68/x
  3. Step 3: Cross multiply
    710,921.22x = 1,065,438.66 × 311,126.68
  4. Step 4: Simplify right side
    710,921.22x = 331,486,393,029.45
  5. Step 5: Solve for x
    x = 331,486,393,029.45/710,921.22
  6. Step 6: Final answer
    x = 466,277.25

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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.