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Finding the Fourth Proportional to 535,645.18, 739,165.50 and 293,921.74

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Solution

The fourth proportional to 535,645.18, 739,165.50 and 293,921.74 is: 405,598.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,645.18 : 739,165.50 = 293,921.74 : x
  2. Step 2: Convert to fraction form
    535,645.18/739,165.50 = 293,921.74/x
  3. Step 3: Cross multiply
    535,645.18x = 739,165.50 × 293,921.74
  4. Step 4: Simplify right side
    535,645.18x = 217,256,809,907.97
  5. Step 5: Solve for x
    x = 217,256,809,907.97/535,645.18
  6. Step 6: Final answer
    x = 405,598.37

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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.