Home / 509,217.26-763,826.90-189,439.25

Finding the Fourth Proportional to 509,217.26, 763,826.90 and 189,439.25

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Solution

The fourth proportional to 509,217.26, 763,826.90 and 189,439.25 is: 284,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,217.26 : 763,826.90 = 189,439.25 : x
  2. Step 2: Convert to fraction form
    509,217.26/763,826.90 = 189,439.25/x
  3. Step 3: Cross multiply
    509,217.26x = 763,826.90 × 189,439.25
  4. Step 4: Simplify right side
    509,217.26x = 144,698,790,299.49
  5. Step 5: Solve for x
    x = 144,698,790,299.49/509,217.26
  6. Step 6: Final answer
    x = 284,159.24

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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.