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Finding the Fourth Proportional to 398,047.92, 549,293.45 and 236,866.02

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Solution

The fourth proportional to 398,047.92, 549,293.45 and 236,866.02 is: 326,867.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,047.92 : 549,293.45 = 236,866.02 : x
  2. Step 2: Convert to fraction form
    398,047.92/549,293.45 = 236,866.02/x
  3. Step 3: Cross multiply
    398,047.92x = 549,293.45 × 236,866.02
  4. Step 4: Simplify right side
    398,047.92x = 130,108,952,129.24
  5. Step 5: Solve for x
    x = 130,108,952,129.24/398,047.92
  6. Step 6: Final answer
    x = 326,867.56

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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.