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Finding the Fourth Proportional to 547,230.60, 820,845.90 and 535,566.60

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Solution

The fourth proportional to 547,230.60, 820,845.90 and 535,566.60 is: 803,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,230.60 : 820,845.90 = 535,566.60 : x
  2. Step 2: Convert to fraction form
    547,230.60/820,845.90 = 535,566.60/x
  3. Step 3: Cross multiply
    547,230.60x = 820,845.90 × 535,566.60
  4. Step 4: Simplify right side
    547,230.60x = 439,617,647,786.94
  5. Step 5: Solve for x
    x = 439,617,647,786.94/547,230.60
  6. Step 6: Final answer
    x = 803,349.90

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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.