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Finding the Fourth Proportional to 398,196.46, 549,511.86 and 237,057.09

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Solution

The fourth proportional to 398,196.46, 549,511.86 and 237,057.09 is: 327,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,196.46 : 549,511.86 = 237,057.09 : x
  2. Step 2: Convert to fraction form
    398,196.46/549,511.86 = 237,057.09/x
  3. Step 3: Cross multiply
    398,196.46x = 549,511.86 × 237,057.09
  4. Step 4: Simplify right side
    398,196.46x = 130,265,682,452.09
  5. Step 5: Solve for x
    x = 130,265,682,452.09/398,196.46
  6. Step 6: Final answer
    x = 327,139.23

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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.