Home / 419,566.60-579,000.18-228,579.40

Finding the Fourth Proportional to 419,566.60, 579,000.18 and 228,579.40

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Solution

The fourth proportional to 419,566.60, 579,000.18 and 228,579.40 is: 315,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,566.60 : 579,000.18 = 228,579.40 : x
  2. Step 2: Convert to fraction form
    419,566.60/579,000.18 = 228,579.40/x
  3. Step 3: Cross multiply
    419,566.60x = 579,000.18 × 228,579.40
  4. Step 4: Simplify right side
    419,566.60x = 132,347,513,744.29
  5. Step 5: Solve for x
    x = 132,347,513,744.29/419,566.60
  6. Step 6: Final answer
    x = 315,438.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.