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Finding the Fourth Proportional to 572,548.60, 858,822.90 and 323,716.60

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Solution

The fourth proportional to 572,548.60, 858,822.90 and 323,716.60 is: 485,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,548.60 : 858,822.90 = 323,716.60 : x
  2. Step 2: Convert to fraction form
    572,548.60/858,822.90 = 323,716.60/x
  3. Step 3: Cross multiply
    572,548.60x = 858,822.90 × 323,716.60
  4. Step 4: Simplify right side
    572,548.60x = 278,015,229,190.14
  5. Step 5: Solve for x
    x = 278,015,229,190.14/572,548.60
  6. Step 6: Final answer
    x = 485,574.90

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Half scale
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Double scale
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Similar ratio
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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.