Home / 283,836.24-423,914.90-257,128.85

Finding the Fourth Proportional to 283,836.24, 423,914.90 and 257,128.85

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Solution

The fourth proportional to 283,836.24, 423,914.90 and 257,128.85 is: 384,026.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,836.24 : 423,914.90 = 257,128.85 : x
  2. Step 2: Convert to fraction form
    283,836.24/423,914.90 = 257,128.85/x
  3. Step 3: Cross multiply
    283,836.24x = 423,914.90 × 257,128.85
  4. Step 4: Simplify right side
    283,836.24x = 109,000,747,329.65
  5. Step 5: Solve for x
    x = 109,000,747,329.65/283,836.24
  6. Step 6: Final answer
    x = 384,026.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.