Home / 1,328,579.60-1,993,128.60-570,419.60

Finding the Fourth Proportional to 1,328,579.60, 1,993,128.60 and 570,419.60

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Solution

The fourth proportional to 1,328,579.60, 1,993,128.60 and 570,419.60 is: 855,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,579.60 : 1,993,128.60 = 570,419.60 : x
  2. Step 2: Convert to fraction form
    1,328,579.60/1,993,128.60 = 570,419.60/x
  3. Step 3: Cross multiply
    1,328,579.60x = 1,993,128.60 × 570,419.60
  4. Step 4: Simplify right side
    1,328,579.60x = 1,136,919,618,760.56
  5. Step 5: Solve for x
    x = 1,136,919,618,760.56/1,328,579.60
  6. Step 6: Final answer
    x = 855,740.69

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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.