Home / 482,819.42-665,827.94-289,196.21

Finding the Fourth Proportional to 482,819.42, 665,827.94 and 289,196.21

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Solution

The fourth proportional to 482,819.42, 665,827.94 and 289,196.21 is: 398,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,819.42 : 665,827.94 = 289,196.21 : x
  2. Step 2: Convert to fraction form
    482,819.42/665,827.94 = 289,196.21/x
  3. Step 3: Cross multiply
    482,819.42x = 665,827.94 × 289,196.21
  4. Step 4: Simplify right side
    482,819.42x = 192,554,916,760.11
  5. Step 5: Solve for x
    x = 192,554,916,760.11/482,819.42
  6. Step 6: Final answer
    x = 398,813.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.