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Finding the Fourth Proportional to 338,398.32, 507,578.79 and 113,735.58

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Solution

The fourth proportional to 338,398.32, 507,578.79 and 113,735.58 is: 170,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,398.32 : 507,578.79 = 113,735.58 : x
  2. Step 2: Convert to fraction form
    338,398.32/507,578.79 = 113,735.58/x
  3. Step 3: Cross multiply
    338,398.32x = 507,578.79 × 113,735.58
  4. Step 4: Simplify right side
    338,398.32x = 57,729,768,076.35
  5. Step 5: Solve for x
    x = 57,729,768,076.35/338,398.32
  6. Step 6: Final answer
    x = 170,597.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.