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Finding the Fourth Proportional to 453,687.20, 680,530.80 and 404,698.40

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Solution

The fourth proportional to 453,687.20, 680,530.80 and 404,698.40 is: 607,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,687.20 : 680,530.80 = 404,698.40 : x
  2. Step 2: Convert to fraction form
    453,687.20/680,530.80 = 404,698.40/x
  3. Step 3: Cross multiply
    453,687.20x = 680,530.80 × 404,698.40
  4. Step 4: Simplify right side
    453,687.20x = 275,409,725,910.72
  5. Step 5: Solve for x
    x = 275,409,725,910.72/453,687.20
  6. Step 6: Final answer
    x = 607,047.60

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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.