Home / 621,021.70-931,531.39-194,590.17

Finding the Fourth Proportional to 621,021.70, 931,531.39 and 194,590.17

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Solution

The fourth proportional to 621,021.70, 931,531.39 and 194,590.17 is: 291,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,021.70 : 931,531.39 = 194,590.17 : x
  2. Step 2: Convert to fraction form
    621,021.70/931,531.39 = 194,590.17/x
  3. Step 3: Cross multiply
    621,021.70x = 931,531.39 × 194,590.17
  4. Step 4: Simplify right side
    621,021.70x = 181,266,855,763.39
  5. Step 5: Solve for x
    x = 181,266,855,763.39/621,021.70
  6. Step 6: Final answer
    x = 291,884.90

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Double scale
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Similar ratio
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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.