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Finding the Fourth Proportional to 256,493.99, 384,782.33 and 79,000.92

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Solution

The fourth proportional to 256,493.99, 384,782.33 and 79,000.92 is: 118,514.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,493.99 : 384,782.33 = 79,000.92 : x
  2. Step 2: Convert to fraction form
    256,493.99/384,782.33 = 79,000.92/x
  3. Step 3: Cross multiply
    256,493.99x = 384,782.33 × 79,000.92
  4. Step 4: Simplify right side
    256,493.99x = 30,398,158,267.25
  5. Step 5: Solve for x
    x = 30,398,158,267.25/256,493.99
  6. Step 6: Final answer
    x = 118,514.11

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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.