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Finding the Fourth Proportional to 534,407.20, 800,055.60 and 323,936.80

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Solution

The fourth proportional to 534,407.20, 800,055.60 and 323,936.80 is: 484,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,407.20 : 800,055.60 = 323,936.80 : x
  2. Step 2: Convert to fraction form
    534,407.20/800,055.60 = 323,936.80/x
  3. Step 3: Cross multiply
    534,407.20x = 800,055.60 × 323,936.80
  4. Step 4: Simplify right side
    534,407.20x = 259,167,450,886.08
  5. Step 5: Solve for x
    x = 259,167,450,886.08/534,407.20
  6. Step 6: Final answer
    x = 484,962.50

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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.