Home / 524,986.40-786,961.20-258,528.80

Finding the Fourth Proportional to 524,986.40, 786,961.20 and 258,528.80

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Solution

The fourth proportional to 524,986.40, 786,961.20 and 258,528.80 is: 387,537.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,986.40 : 786,961.20 = 258,528.80 : x
  2. Step 2: Convert to fraction form
    524,986.40/786,961.20 = 258,528.80/x
  3. Step 3: Cross multiply
    524,986.40x = 786,961.20 × 258,528.80
  4. Step 4: Simplify right side
    524,986.40x = 203,452,134,682.56
  5. Step 5: Solve for x
    x = 203,452,134,682.56/524,986.40
  6. Step 6: Final answer
    x = 387,537.91

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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.