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Finding the Fourth Proportional to 535,641.01, 739,530.86 and 331,908.13

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Solution

The fourth proportional to 535,641.01, 739,530.86 and 331,908.13 is: 458,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,641.01 : 739,530.86 = 331,908.13 : x
  2. Step 2: Convert to fraction form
    535,641.01/739,530.86 = 331,908.13/x
  3. Step 3: Cross multiply
    535,641.01x = 739,530.86 × 331,908.13
  4. Step 4: Simplify right side
    535,641.01x = 245,456,303,800.84
  5. Step 5: Solve for x
    x = 245,456,303,800.84/535,641.01
  6. Step 6: Final answer
    x = 458,247.78

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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.