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Finding the Fourth Proportional to 418,173.60, 577,076.48 and 227,188.56

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Solution

The fourth proportional to 418,173.60, 577,076.48 and 227,188.56 is: 313,518.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,173.60 : 577,076.48 = 227,188.56 : x
  2. Step 2: Convert to fraction form
    418,173.60/577,076.48 = 227,188.56/x
  3. Step 3: Cross multiply
    418,173.60x = 577,076.48 × 227,188.56
  4. Step 4: Simplify right side
    418,173.60x = 131,105,174,501.07
  5. Step 5: Solve for x
    x = 131,105,174,501.07/418,173.60
  6. Step 6: Final answer
    x = 313,518.54

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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.