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Finding the Fourth Proportional to 398,049.42, 549,295.50 and 236,867.52

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Solution

The fourth proportional to 398,049.42, 549,295.50 and 236,867.52 is: 326,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,049.42 : 549,295.50 = 236,867.52 : x
  2. Step 2: Convert to fraction form
    398,049.42/549,295.50 = 236,867.52/x
  3. Step 3: Cross multiply
    398,049.42x = 549,295.50 × 236,867.52
  4. Step 4: Simplify right side
    398,049.42x = 130,110,262,832.16
  5. Step 5: Solve for x
    x = 130,110,262,832.16/398,049.42
  6. Step 6: Final answer
    x = 326,869.62

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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.