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Finding the Fourth Proportional to 628,076.28, 866,749.37 and 341,598.45

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Solution

The fourth proportional to 628,076.28, 866,749.37 and 341,598.45 is: 471,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,076.28 : 866,749.37 = 341,598.45 : x
  2. Step 2: Convert to fraction form
    628,076.28/866,749.37 = 341,598.45/x
  3. Step 3: Cross multiply
    628,076.28x = 866,749.37 × 341,598.45
  4. Step 4: Simplify right side
    628,076.28x = 296,080,241,330.48
  5. Step 5: Solve for x
    x = 296,080,241,330.48/628,076.28
  6. Step 6: Final answer
    x = 471,408.09

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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.