Home / 621,029.63-931,741.28-221,661.56

Finding the Fourth Proportional to 621,029.63, 931,741.28 and 221,661.56

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Solution

The fourth proportional to 621,029.63, 931,741.28 and 221,661.56 is: 332,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,029.63 : 931,741.28 = 221,661.56 : x
  2. Step 2: Convert to fraction form
    621,029.63/931,741.28 = 221,661.56/x
  3. Step 3: Cross multiply
    621,029.63x = 931,741.28 × 221,661.56
  4. Step 4: Simplify right side
    621,029.63x = 206,531,227,693.47
  5. Step 5: Solve for x
    x = 206,531,227,693.47/621,029.63
  6. Step 6: Final answer
    x = 332,562.60

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1.5x scale

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.