Home / 418,628.85-577,701.23-227,640.57

Finding the Fourth Proportional to 418,628.85, 577,701.23 and 227,640.57

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Solution

The fourth proportional to 418,628.85, 577,701.23 and 227,640.57 is: 314,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,628.85 : 577,701.23 = 227,640.57 : x
  2. Step 2: Convert to fraction form
    418,628.85/577,701.23 = 227,640.57/x
  3. Step 3: Cross multiply
    418,628.85x = 577,701.23 × 227,640.57
  4. Step 4: Simplify right side
    418,628.85x = 131,508,236,148.70
  5. Step 5: Solve for x
    x = 131,508,236,148.70/418,628.85
  6. Step 6: Final answer
    x = 314,140.40

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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.