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Finding the Fourth Proportional to 379,503.44, 523,697.54 and 234,374.12

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Solution

The fourth proportional to 379,503.44, 523,697.54 and 234,374.12 is: 323,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,503.44 : 523,697.54 = 234,374.12 : x
  2. Step 2: Convert to fraction form
    379,503.44/523,697.54 = 234,374.12/x
  3. Step 3: Cross multiply
    379,503.44x = 523,697.54 × 234,374.12
  4. Step 4: Simplify right side
    379,503.44x = 122,741,151,978.84
  5. Step 5: Solve for x
    x = 122,741,151,978.84/379,503.44
  6. Step 6: Final answer
    x = 323,425.66

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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.