Home / 850,325.40-1,173,404.68-528,028.56

Finding the Fourth Proportional to 850,325.40, 1,173,404.68 and 528,028.56

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Solution

The fourth proportional to 850,325.40, 1,173,404.68 and 528,028.56 is: 728,651.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,325.40 : 1,173,404.68 = 528,028.56 : x
  2. Step 2: Convert to fraction form
    850,325.40/1,173,404.68 = 528,028.56/x
  3. Step 3: Cross multiply
    850,325.40x = 1,173,404.68 × 528,028.56
  4. Step 4: Simplify right side
    850,325.40x = 619,591,183,477.66
  5. Step 5: Solve for x
    x = 619,591,183,477.66/850,325.40
  6. Step 6: Final answer
    x = 728,651.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.