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Finding the Fourth Proportional to 544,048.20, 816,072.30 and 292,105.80

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Solution

The fourth proportional to 544,048.20, 816,072.30 and 292,105.80 is: 438,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,048.20 : 816,072.30 = 292,105.80 : x
  2. Step 2: Convert to fraction form
    544,048.20/816,072.30 = 292,105.80/x
  3. Step 3: Cross multiply
    544,048.20x = 816,072.30 × 292,105.80
  4. Step 4: Simplify right side
    544,048.20x = 238,379,452,049.34
  5. Step 5: Solve for x
    x = 238,379,452,049.34/544,048.20
  6. Step 6: Final answer
    x = 438,158.70

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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.