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Finding the Fourth Proportional to 453,604.80, 680,407.20 and 187,228.20

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Solution

The fourth proportional to 453,604.80, 680,407.20 and 187,228.20 is: 280,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,604.80 : 680,407.20 = 187,228.20 : x
  2. Step 2: Convert to fraction form
    453,604.80/680,407.20 = 187,228.20/x
  3. Step 3: Cross multiply
    453,604.80x = 680,407.20 × 187,228.20
  4. Step 4: Simplify right side
    453,604.80x = 127,391,415,323.04
  5. Step 5: Solve for x
    x = 127,391,415,323.04/453,604.80
  6. Step 6: Final answer
    x = 280,842.30

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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.