Home / 621,021.58-931,531.21-194,590.05

Finding the Fourth Proportional to 621,021.58, 931,531.21 and 194,590.05

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Solution

The fourth proportional to 621,021.58, 931,531.21 and 194,590.05 is: 291,884.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,021.58 : 931,531.21 = 194,590.05 : x
  2. Step 2: Convert to fraction form
    621,021.58/931,531.21 = 194,590.05/x
  3. Step 3: Cross multiply
    621,021.58x = 931,531.21 × 194,590.05
  4. Step 4: Simplify right side
    621,021.58x = 181,266,702,775.52
  5. Step 5: Solve for x
    x = 181,266,702,775.52/621,021.58
  6. Step 6: Final answer
    x = 291,884.71

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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.