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Finding the Fourth Proportional to 453,467.40, 680,857.20 and 341,930.40

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Solution

The fourth proportional to 453,467.40, 680,857.20 and 341,930.40 is: 513,390.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,467.40 : 680,857.20 = 341,930.40 : x
  2. Step 2: Convert to fraction form
    453,467.40/680,857.20 = 341,930.40/x
  3. Step 3: Cross multiply
    453,467.40x = 680,857.20 × 341,930.40
  4. Step 4: Simplify right side
    453,467.40x = 232,805,774,738.88
  5. Step 5: Solve for x
    x = 232,805,774,738.88/453,467.40
  6. Step 6: Final answer
    x = 513,390.32

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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.