Home / 628,222.80-942,334.20-389,074.35

Finding the Fourth Proportional to 628,222.80, 942,334.20 and 389,074.35

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Solution

The fourth proportional to 628,222.80, 942,334.20 and 389,074.35 is: 583,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,222.80 : 942,334.20 = 389,074.35 : x
  2. Step 2: Convert to fraction form
    628,222.80/942,334.20 = 389,074.35/x
  3. Step 3: Cross multiply
    628,222.80x = 942,334.20 × 389,074.35
  4. Step 4: Simplify right side
    628,222.80x = 366,638,066,347.77
  5. Step 5: Solve for x
    x = 366,638,066,347.77/628,222.80
  6. Step 6: Final answer
    x = 583,611.53

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Double scale
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Similar ratio
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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.