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Finding the Fourth Proportional to 551,889.05, 761,581.98 and 322,467.48

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Solution

The fourth proportional to 551,889.05, 761,581.98 and 322,467.48 is: 444,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,889.05 : 761,581.98 = 322,467.48 : x
  2. Step 2: Convert to fraction form
    551,889.05/761,581.98 = 322,467.48/x
  3. Step 3: Cross multiply
    551,889.05x = 761,581.98 × 322,467.48
  4. Step 4: Simplify right side
    551,889.05x = 245,585,421,904.01
  5. Step 5: Solve for x
    x = 245,585,421,904.01/551,889.05
  6. Step 6: Final answer
    x = 444,990.57

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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.