Home / 621,121.80-931,018.35-283,656.75

Finding the Fourth Proportional to 621,121.80, 931,018.35 and 283,656.75

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Solution

The fourth proportional to 621,121.80, 931,018.35 and 283,656.75 is: 425,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,121.80 : 931,018.35 = 283,656.75 : x
  2. Step 2: Convert to fraction form
    621,121.80/931,018.35 = 283,656.75/x
  3. Step 3: Cross multiply
    621,121.80x = 931,018.35 × 283,656.75
  4. Step 4: Simplify right side
    621,121.80x = 264,089,639,351.36
  5. Step 5: Solve for x
    x = 264,089,639,351.36/621,121.80
  6. Step 6: Final answer
    x = 425,181.73

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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.