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Finding the Fourth Proportional to 559,940.78, 839,379.06 and 356,967.14

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Solution

The fourth proportional to 559,940.78, 839,379.06 and 356,967.14 is: 535,111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,940.78 : 839,379.06 = 356,967.14 : x
  2. Step 2: Convert to fraction form
    559,940.78/839,379.06 = 356,967.14/x
  3. Step 3: Cross multiply
    559,940.78x = 839,379.06 × 356,967.14
  4. Step 4: Simplify right side
    559,940.78x = 299,630,738,227.19
  5. Step 5: Solve for x
    x = 299,630,738,227.19/559,940.78
  6. Step 6: Final answer
    x = 535,111.48

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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.