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Finding the Fourth Proportional to 359,676.20, 496,365.18 and 196,342.40

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Solution

The fourth proportional to 359,676.20, 496,365.18 and 196,342.40 is: 270,959.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,676.20 : 496,365.18 = 196,342.40 : x
  2. Step 2: Convert to fraction form
    359,676.20/496,365.18 = 196,342.40/x
  3. Step 3: Cross multiply
    359,676.20x = 496,365.18 × 196,342.40
  4. Step 4: Simplify right side
    359,676.20x = 97,457,530,717.63
  5. Step 5: Solve for x
    x = 97,457,530,717.63/359,676.20
  6. Step 6: Final answer
    x = 270,959.08

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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.