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Finding the Fourth Proportional to 492,708.20, 739,062.30 and 437,595.80

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Solution

The fourth proportional to 492,708.20, 739,062.30 and 437,595.80 is: 656,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,708.20 : 739,062.30 = 437,595.80 : x
  2. Step 2: Convert to fraction form
    492,708.20/739,062.30 = 437,595.80/x
  3. Step 3: Cross multiply
    492,708.20x = 739,062.30 × 437,595.80
  4. Step 4: Simplify right side
    492,708.20x = 323,410,558,418.34
  5. Step 5: Solve for x
    x = 323,410,558,418.34/492,708.20
  6. Step 6: Final answer
    x = 656,393.70

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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.