Home / 628,230.79-942,346.32-439,060.66

Finding the Fourth Proportional to 628,230.79, 942,346.32 and 439,060.66

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Solution

The fourth proportional to 628,230.79, 942,346.32 and 439,060.66 is: 658,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,230.79 : 942,346.32 = 439,060.66 : x
  2. Step 2: Convert to fraction form
    628,230.79/942,346.32 = 439,060.66/x
  3. Step 3: Cross multiply
    628,230.79x = 942,346.32 × 439,060.66
  4. Step 4: Simplify right side
    628,230.79x = 413,747,197,207.77
  5. Step 5: Solve for x
    x = 413,747,197,207.77/628,230.79
  6. Step 6: Final answer
    x = 658,591.08

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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.