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Finding the Fourth Proportional to 492,093.20, 738,139.80 and 373,120.40

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Solution

The fourth proportional to 492,093.20, 738,139.80 and 373,120.40 is: 559,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,093.20 : 738,139.80 = 373,120.40 : x
  2. Step 2: Convert to fraction form
    492,093.20/738,139.80 = 373,120.40/x
  3. Step 3: Cross multiply
    492,093.20x = 738,139.80 × 373,120.40
  4. Step 4: Simplify right side
    492,093.20x = 275,415,017,431.92
  5. Step 5: Solve for x
    x = 275,415,017,431.92/492,093.20
  6. Step 6: Final answer
    x = 559,680.60

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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.