Home / 634,608.20-951,915.60-213,887.72

Finding the Fourth Proportional to 634,608.20, 951,915.60 and 213,887.72

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Solution

The fourth proportional to 634,608.20, 951,915.60 and 213,887.72 is: 320,832.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,608.20 : 951,915.60 = 213,887.72 : x
  2. Step 2: Convert to fraction form
    634,608.20/951,915.60 = 213,887.72/x
  3. Step 3: Cross multiply
    634,608.20x = 951,915.60 × 213,887.72
  4. Step 4: Simplify right side
    634,608.20x = 203,603,057,316.43
  5. Step 5: Solve for x
    x = 203,603,057,316.43/634,608.20
  6. Step 6: Final answer
    x = 320,832.69

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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.