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Finding the Fourth Proportional to 631,864.76, 947,797.12 and 252,956.06

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Solution

The fourth proportional to 631,864.76, 947,797.12 and 252,956.06 is: 379,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,864.76 : 947,797.12 = 252,956.06 : x
  2. Step 2: Convert to fraction form
    631,864.76/947,797.12 = 252,956.06/x
  3. Step 3: Cross multiply
    631,864.76x = 947,797.12 × 252,956.06
  4. Step 4: Simplify right side
    631,864.76x = 239,751,025,154.55
  5. Step 5: Solve for x
    x = 239,751,025,154.55/631,864.76
  6. Step 6: Final answer
    x = 379,434.08

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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.