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Finding the Fourth Proportional to 347,321.89, 478,844.76 and 250,444.68

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Solution

The fourth proportional to 347,321.89, 478,844.76 and 250,444.68 is: 345,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,321.89 : 478,844.76 = 250,444.68 : x
  2. Step 2: Convert to fraction form
    347,321.89/478,844.76 = 250,444.68/x
  3. Step 3: Cross multiply
    347,321.89x = 478,844.76 × 250,444.68
  4. Step 4: Simplify right side
    347,321.89x = 119,924,122,687.88
  5. Step 5: Solve for x
    x = 119,924,122,687.88/347,321.89
  6. Step 6: Final answer
    x = 345,282.36

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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.