Home / 853,620.20-1,280,051.21-454,176.80

Finding the Fourth Proportional to 853,620.20, 1,280,051.21 and 454,176.80

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Solution

The fourth proportional to 853,620.20, 1,280,051.21 and 454,176.80 is: 681,063.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,620.20 : 1,280,051.21 = 454,176.80 : x
  2. Step 2: Convert to fraction form
    853,620.20/1,280,051.21 = 454,176.80/x
  3. Step 3: Cross multiply
    853,620.20x = 1,280,051.21 × 454,176.80
  4. Step 4: Simplify right side
    853,620.20x = 581,369,553,722.79
  5. Step 5: Solve for x
    x = 581,369,553,722.79/853,620.20
  6. Step 6: Final answer
    x = 681,063.50

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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.