Home / 524,986.40-786,961.20-209,021.60

Finding the Fourth Proportional to 524,986.40, 786,961.20 and 209,021.60

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Solution

The fourth proportional to 524,986.40, 786,961.20 and 209,021.60 is: 313,326.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,986.40 : 786,961.20 = 209,021.60 : x
  2. Step 2: Convert to fraction form
    524,986.40/786,961.20 = 209,021.60/x
  3. Step 3: Cross multiply
    524,986.40x = 786,961.20 × 209,021.60
  4. Step 4: Simplify right side
    524,986.40x = 164,491,889,161.92
  5. Step 5: Solve for x
    x = 164,491,889,161.92/524,986.40
  6. Step 6: Final answer
    x = 313,326.00

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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.