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Finding the Fourth Proportional to 453,863.40, 679,628.70 and 334,890.60

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Solution

The fourth proportional to 453,863.40, 679,628.70 and 334,890.60 is: 501,475.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,863.40 : 679,628.70 = 334,890.60 : x
  2. Step 2: Convert to fraction form
    453,863.40/679,628.70 = 334,890.60/x
  3. Step 3: Cross multiply
    453,863.40x = 679,628.70 × 334,890.60
  4. Step 4: Simplify right side
    453,863.40x = 227,601,263,120.22
  5. Step 5: Solve for x
    x = 227,601,263,120.22/453,863.40
  6. Step 6: Final answer
    x = 501,475.25

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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.