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Finding the Fourth Proportional to 304,003.40, 419,414.10 and 176,649.80

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Solution

The fourth proportional to 304,003.40, 419,414.10 and 176,649.80 is: 243,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,003.40 : 419,414.10 = 176,649.80 : x
  2. Step 2: Convert to fraction form
    304,003.40/419,414.10 = 176,649.80/x
  3. Step 3: Cross multiply
    304,003.40x = 419,414.10 × 176,649.80
  4. Step 4: Simplify right side
    304,003.40x = 74,089,416,882.18
  5. Step 5: Solve for x
    x = 74,089,416,882.18/304,003.40
  6. Step 6: Final answer
    x = 243,712.46

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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.