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Finding the Fourth Proportional to 535,573.14, 739,114.05 and 320,672.16

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Solution

The fourth proportional to 535,573.14, 739,114.05 and 320,672.16 is: 442,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,573.14 : 739,114.05 = 320,672.16 : x
  2. Step 2: Convert to fraction form
    535,573.14/739,114.05 = 320,672.16/x
  3. Step 3: Cross multiply
    535,573.14x = 739,114.05 × 320,672.16
  4. Step 4: Simplify right side
    535,573.14x = 237,013,298,899.85
  5. Step 5: Solve for x
    x = 237,013,298,899.85/535,573.14
  6. Step 6: Final answer
    x = 442,541.42

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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.