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Finding the Fourth Proportional to 535,901.34, 804,009.92 and 215,888.53

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Solution

The fourth proportional to 535,901.34, 804,009.92 and 215,888.53 is: 323,896.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,901.34 : 804,009.92 = 215,888.53 : x
  2. Step 2: Convert to fraction form
    535,901.34/804,009.92 = 215,888.53/x
  3. Step 3: Cross multiply
    535,901.34x = 804,009.92 × 215,888.53
  4. Step 4: Simplify right side
    535,901.34x = 173,576,519,734.22
  5. Step 5: Solve for x
    x = 173,576,519,734.22/535,901.34
  6. Step 6: Final answer
    x = 323,896.41

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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.