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Finding the Fourth Proportional to 644,295.82, 966,368.67 and 171,017.95

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Solution

The fourth proportional to 644,295.82, 966,368.67 and 171,017.95 is: 256,507.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,295.82 : 966,368.67 = 171,017.95 : x
  2. Step 2: Convert to fraction form
    644,295.82/966,368.67 = 171,017.95/x
  3. Step 3: Cross multiply
    644,295.82x = 966,368.67 × 171,017.95
  4. Step 4: Simplify right side
    644,295.82x = 165,266,388,887.63
  5. Step 5: Solve for x
    x = 165,266,388,887.63/644,295.82
  6. Step 6: Final answer
    x = 256,507.00

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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.