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Finding the Fourth Proportional to 469,905.57, 704,745.45 and 216,943.03

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Solution

The fourth proportional to 469,905.57, 704,745.45 and 216,943.03 is: 325,362.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,905.57 : 704,745.45 = 216,943.03 : x
  2. Step 2: Convert to fraction form
    469,905.57/704,745.45 = 216,943.03/x
  3. Step 3: Cross multiply
    469,905.57x = 704,745.45 × 216,943.03
  4. Step 4: Simplify right side
    469,905.57x = 152,889,613,301.71
  5. Step 5: Solve for x
    x = 152,889,613,301.71/469,905.57
  6. Step 6: Final answer
    x = 325,362.42

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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.