Home / 621,021.83-931,531.58-194,590.30

Finding the Fourth Proportional to 621,021.83, 931,531.58 and 194,590.30

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Solution

The fourth proportional to 621,021.83, 931,531.58 and 194,590.30 is: 291,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,021.83 : 931,531.58 = 194,590.30 : x
  2. Step 2: Convert to fraction form
    621,021.83/931,531.58 = 194,590.30/x
  3. Step 3: Cross multiply
    621,021.83x = 931,531.58 × 194,590.30
  4. Step 4: Simplify right side
    621,021.83x = 181,267,009,611.67
  5. Step 5: Solve for x
    x = 181,267,009,611.67/621,021.83
  6. Step 6: Final answer
    x = 291,885.08

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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.