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Finding the Fourth Proportional to 447,995.61, 671,760.14 and 211,274.73

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Solution

The fourth proportional to 447,995.61, 671,760.14 and 211,274.73 is: 316,802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,995.61 : 671,760.14 = 211,274.73 : x
  2. Step 2: Convert to fraction form
    447,995.61/671,760.14 = 211,274.73/x
  3. Step 3: Cross multiply
    447,995.61x = 671,760.14 × 211,274.73
  4. Step 4: Simplify right side
    447,995.61x = 141,925,941,146.89
  5. Step 5: Solve for x
    x = 141,925,941,146.89/447,995.61
  6. Step 6: Final answer
    x = 316,802.08

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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.