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Finding the Fourth Proportional to 453,949.74, 680,038.77 and 353,640.25

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Solution

The fourth proportional to 453,949.74, 680,038.77 and 353,640.25 is: 529,770.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,949.74 : 680,038.77 = 353,640.25 : x
  2. Step 2: Convert to fraction form
    453,949.74/680,038.77 = 353,640.25/x
  3. Step 3: Cross multiply
    453,949.74x = 680,038.77 × 353,640.25
  4. Step 4: Simplify right side
    453,949.74x = 240,489,080,360.47
  5. Step 5: Solve for x
    x = 240,489,080,360.47/453,949.74
  6. Step 6: Final answer
    x = 529,770.28

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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.