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Finding the Fourth Proportional to 453,755.80, 680,633.70 and 304,456.60

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Solution

The fourth proportional to 453,755.80, 680,633.70 and 304,456.60 is: 456,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,755.80 : 680,633.70 = 304,456.60 : x
  2. Step 2: Convert to fraction form
    453,755.80/680,633.70 = 304,456.60/x
  3. Step 3: Cross multiply
    453,755.80x = 680,633.70 × 304,456.60
  4. Step 4: Simplify right side
    453,755.80x = 207,223,422,147.42
  5. Step 5: Solve for x
    x = 207,223,422,147.42/453,755.80
  6. Step 6: Final answer
    x = 456,684.90

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1.5x scale

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.