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Finding the Fourth Proportional to 546,944.20, 820,416.30 and 513,701.80

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Solution

The fourth proportional to 546,944.20, 820,416.30 and 513,701.80 is: 770,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,944.20 : 820,416.30 = 513,701.80 : x
  2. Step 2: Convert to fraction form
    546,944.20/820,416.30 = 513,701.80/x
  3. Step 3: Cross multiply
    546,944.20x = 820,416.30 × 513,701.80
  4. Step 4: Simplify right side
    546,944.20x = 421,449,330,059.34
  5. Step 5: Solve for x
    x = 421,449,330,059.34/546,944.20
  6. Step 6: Final answer
    x = 770,552.70

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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.