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Finding the Fourth Proportional to 398,084.01, 549,401.32 and 236,939.58

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Solution

The fourth proportional to 398,084.01, 549,401.32 and 236,939.58 is: 327,003.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,084.01 : 549,401.32 = 236,939.58 : x
  2. Step 2: Convert to fraction form
    398,084.01/549,401.32 = 236,939.58/x
  3. Step 3: Cross multiply
    398,084.01x = 549,401.32 × 236,939.58
  4. Step 4: Simplify right side
    398,084.01x = 130,174,918,012.25
  5. Step 5: Solve for x
    x = 130,174,918,012.25/398,084.01
  6. Step 6: Final answer
    x = 327,003.63

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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.