Home / 513,556.17-769,916.88-214,259.76

Finding the Fourth Proportional to 513,556.17, 769,916.88 and 214,259.76

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Solution

The fourth proportional to 513,556.17, 769,916.88 and 214,259.76 is: 321,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,556.17 : 769,916.88 = 214,259.76 : x
  2. Step 2: Convert to fraction form
    513,556.17/769,916.88 = 214,259.76/x
  3. Step 3: Cross multiply
    513,556.17x = 769,916.88 × 214,259.76
  4. Step 4: Simplify right side
    513,556.17x = 164,962,205,928.75
  5. Step 5: Solve for x
    x = 164,962,205,928.75/513,556.17
  6. Step 6: Final answer
    x = 321,215.51

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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.