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Finding the Fourth Proportional to 572,522.60, 858,783.90 and 323,690.60

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Solution

The fourth proportional to 572,522.60, 858,783.90 and 323,690.60 is: 485,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,522.60 : 858,783.90 = 323,690.60 : x
  2. Step 2: Convert to fraction form
    572,522.60/858,783.90 = 323,690.60/x
  3. Step 3: Cross multiply
    572,522.60x = 858,783.90 × 323,690.60
  4. Step 4: Simplify right side
    572,522.60x = 277,980,275,861.34
  5. Step 5: Solve for x
    x = 277,980,275,861.34/572,522.60
  6. Step 6: Final answer
    x = 485,535.90

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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.