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Finding the Fourth Proportional to 644,703.66, 967,054.32 and 171,388.98

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Solution

The fourth proportional to 644,703.66, 967,054.32 and 171,388.98 is: 257,083.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,703.66 : 967,054.32 = 171,388.98 : x
  2. Step 2: Convert to fraction form
    644,703.66/967,054.32 = 171,388.98/x
  3. Step 3: Cross multiply
    644,703.66x = 967,054.32 × 171,388.98
  4. Step 4: Simplify right side
    644,703.66x = 165,742,453,509.39
  5. Step 5: Solve for x
    x = 165,742,453,509.39/644,703.66
  6. Step 6: Final answer
    x = 257,083.16

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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.