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Finding the Fourth Proportional to 453,725.40, 680,490.90 and 201,005.40

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Solution

The fourth proportional to 453,725.40, 680,490.90 and 201,005.40 is: 301,465.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,725.40 : 680,490.90 = 201,005.40 : x
  2. Step 2: Convert to fraction form
    453,725.40/680,490.90 = 201,005.40/x
  3. Step 3: Cross multiply
    453,725.40x = 680,490.90 × 201,005.40
  4. Step 4: Simplify right side
    453,725.40x = 136,782,345,550.86
  5. Step 5: Solve for x
    x = 136,782,345,550.86/453,725.40
  6. Step 6: Final answer
    x = 301,465.04

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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.