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Finding the Fourth Proportional to 398,297.39, 549,399.31 and 237,032.06

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Solution

The fourth proportional to 398,297.39, 549,399.31 and 237,032.06 is: 326,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,297.39 : 549,399.31 = 237,032.06 : x
  2. Step 2: Convert to fraction form
    398,297.39/549,399.31 = 237,032.06/x
  3. Step 3: Cross multiply
    398,297.39x = 549,399.31 × 237,032.06
  4. Step 4: Simplify right side
    398,297.39x = 130,225,246,872.30
  5. Step 5: Solve for x
    x = 130,225,246,872.30/398,297.39
  6. Step 6: Final answer
    x = 326,954.81

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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.