Home / 886,205.40-1,328,400.90-436,234.20

Finding the Fourth Proportional to 886,205.40, 1,328,400.90 and 436,234.20

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Solution

The fourth proportional to 886,205.40, 1,328,400.90 and 436,234.20 is: 653,904.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,205.40 : 1,328,400.90 = 436,234.20 : x
  2. Step 2: Convert to fraction form
    886,205.40/1,328,400.90 = 436,234.20/x
  3. Step 3: Cross multiply
    886,205.40x = 1,328,400.90 × 436,234.20
  4. Step 4: Simplify right side
    886,205.40x = 579,493,903,890.78
  5. Step 5: Solve for x
    x = 579,493,903,890.78/886,205.40
  6. Step 6: Final answer
    x = 653,904.73

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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.