Home / 726,667.76-1,001,762.23-511,138.91

Finding the Fourth Proportional to 726,667.76, 1,001,762.23 and 511,138.91

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Solution

The fourth proportional to 726,667.76, 1,001,762.23 and 511,138.91 is: 704,640.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,667.76 : 1,001,762.23 = 511,138.91 : x
  2. Step 2: Convert to fraction form
    726,667.76/1,001,762.23 = 511,138.91/x
  3. Step 3: Cross multiply
    726,667.76x = 1,001,762.23 × 511,138.91
  4. Step 4: Simplify right side
    726,667.76x = 512,039,654,321.37
  5. Step 5: Solve for x
    x = 512,039,654,321.37/726,667.76
  6. Step 6: Final answer
    x = 704,640.67

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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.