Home / 1,280,770.20-1,919,600.10-570,043.80

Finding the Fourth Proportional to 1,280,770.20, 1,919,600.10 and 570,043.80

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Solution

The fourth proportional to 1,280,770.20, 1,919,600.10 and 570,043.80 is: 854,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,770.20 : 1,919,600.10 = 570,043.80 : x
  2. Step 2: Convert to fraction form
    1,280,770.20/1,919,600.10 = 570,043.80/x
  3. Step 3: Cross multiply
    1,280,770.20x = 1,919,600.10 × 570,043.80
  4. Step 4: Simplify right side
    1,280,770.20x = 1,094,256,135,484.38
  5. Step 5: Solve for x
    x = 1,094,256,135,484.38/1,280,770.20
  6. Step 6: Final answer
    x = 854,373.51

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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.