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Finding the Fourth Proportional to 479,136.30, 719,179.98 and 254,498.59

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Solution

The fourth proportional to 479,136.30, 719,179.98 and 254,498.59 is: 382,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,136.30 : 719,179.98 = 254,498.59 : x
  2. Step 2: Convert to fraction form
    479,136.30/719,179.98 = 254,498.59/x
  3. Step 3: Cross multiply
    479,136.30x = 719,179.98 × 254,498.59
  4. Step 4: Simplify right side
    479,136.30x = 183,030,290,866.23
  5. Step 5: Solve for x
    x = 183,030,290,866.23/479,136.30
  6. Step 6: Final answer
    x = 382,000.47

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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.