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Finding the Fourth Proportional to 683,191.26, 942,803.82 and 381,385.26

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Solution

The fourth proportional to 683,191.26, 942,803.82 and 381,385.26 is: 526,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,191.26 : 942,803.82 = 381,385.26 : x
  2. Step 2: Convert to fraction form
    683,191.26/942,803.82 = 381,385.26/x
  3. Step 3: Cross multiply
    683,191.26x = 942,803.82 × 381,385.26
  4. Step 4: Simplify right side
    683,191.26x = 359,571,480,019.69
  5. Step 5: Solve for x
    x = 359,571,480,019.69/683,191.26
  6. Step 6: Final answer
    x = 526,311.59

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.