Home / 621,034.64-931,748.78-221,666.56

Finding the Fourth Proportional to 621,034.64, 931,748.78 and 221,666.56

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Solution

The fourth proportional to 621,034.64, 931,748.78 and 221,666.56 is: 332,570.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,034.64 : 931,748.78 = 221,666.56 : x
  2. Step 2: Convert to fraction form
    621,034.64/931,748.78 = 221,666.56/x
  3. Step 3: Cross multiply
    621,034.64x = 931,748.78 × 221,666.56
  4. Step 4: Simplify right side
    621,034.64x = 206,537,546,846.80
  5. Step 5: Solve for x
    x = 206,537,546,846.80/621,034.64
  6. Step 6: Final answer
    x = 332,570.09

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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.