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Finding the Fourth Proportional to 398,196.96, 549,512.55 and 237,057.59

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Solution

The fourth proportional to 398,196.96, 549,512.55 and 237,057.59 is: 327,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,196.96 : 549,512.55 = 237,057.59 : x
  2. Step 2: Convert to fraction form
    398,196.96/549,512.55 = 237,057.59/x
  3. Step 3: Cross multiply
    398,196.96x = 549,512.55 × 237,057.59
  4. Step 4: Simplify right side
    398,196.96x = 130,266,118,030.19
  5. Step 5: Solve for x
    x = 130,266,118,030.19/398,196.96
  6. Step 6: Final answer
    x = 327,139.91

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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.