Home / 770,540.70-1,155,811.05-534,150.30

Finding the Fourth Proportional to 770,540.70, 1,155,811.05 and 534,150.30

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Solution

The fourth proportional to 770,540.70, 1,155,811.05 and 534,150.30 is: 801,225.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,540.70 : 1,155,811.05 = 534,150.30 : x
  2. Step 2: Convert to fraction form
    770,540.70/1,155,811.05 = 534,150.30/x
  3. Step 3: Cross multiply
    770,540.70x = 1,155,811.05 × 534,150.30
  4. Step 4: Simplify right side
    770,540.70x = 617,376,819,100.82
  5. Step 5: Solve for x
    x = 617,376,819,100.82/770,540.70
  6. Step 6: Final answer
    x = 801,225.45

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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.