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Finding the Fourth Proportional to 304,313.20, 456,469.80 and 186,215.20

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Solution

The fourth proportional to 304,313.20, 456,469.80 and 186,215.20 is: 279,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,313.20 : 456,469.80 = 186,215.20 : x
  2. Step 2: Convert to fraction form
    304,313.20/456,469.80 = 186,215.20/x
  3. Step 3: Cross multiply
    304,313.20x = 456,469.80 × 186,215.20
  4. Step 4: Simplify right side
    304,313.20x = 85,001,615,100.96
  5. Step 5: Solve for x
    x = 85,001,615,100.96/304,313.20
  6. Step 6: Final answer
    x = 279,322.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.