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Finding the Fourth Proportional to 561,905.10, 775,365.39 and 332,469.42

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Solution

The fourth proportional to 561,905.10, 775,365.39 and 332,469.42 is: 458,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,905.10 : 775,365.39 = 332,469.42 : x
  2. Step 2: Convert to fraction form
    561,905.10/775,365.39 = 332,469.42/x
  3. Step 3: Cross multiply
    561,905.10x = 775,365.39 × 332,469.42
  4. Step 4: Simplify right side
    561,905.10x = 257,785,281,501.37
  5. Step 5: Solve for x
    x = 257,785,281,501.37/561,905.10
  6. Step 6: Final answer
    x = 458,770.14

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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.