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Finding the Fourth Proportional to 572,512.60, 858,768.90 and 362,387.80

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Solution

The fourth proportional to 572,512.60, 858,768.90 and 362,387.80 is: 543,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,512.60 : 858,768.90 = 362,387.80 : x
  2. Step 2: Convert to fraction form
    572,512.60/858,768.90 = 362,387.80/x
  3. Step 3: Cross multiply
    572,512.60x = 858,768.90 × 362,387.80
  4. Step 4: Simplify right side
    572,512.60x = 311,207,372,379.42
  5. Step 5: Solve for x
    x = 311,207,372,379.42/572,512.60
  6. Step 6: Final answer
    x = 543,581.70

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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.