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Finding the Fourth Proportional to 559,946.10, 839,263.05 and 419,540.70

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Solution

The fourth proportional to 559,946.10, 839,263.05 and 419,540.70 is: 628,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,946.10 : 839,263.05 = 419,540.70 : x
  2. Step 2: Convert to fraction form
    559,946.10/839,263.05 = 419,540.70/x
  3. Step 3: Cross multiply
    559,946.10x = 839,263.05 × 419,540.70
  4. Step 4: Simplify right side
    559,946.10x = 352,105,007,481.14
  5. Step 5: Solve for x
    x = 352,105,007,481.14/559,946.10
  6. Step 6: Final answer
    x = 628,819.47

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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.