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Finding the Fourth Proportional to 628,273.14, 866,628.15 and 547,893.60

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Solution

The fourth proportional to 628,273.14, 866,628.15 and 547,893.60 is: 755,754.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,273.14 : 866,628.15 = 547,893.60 : x
  2. Step 2: Convert to fraction form
    628,273.14/866,628.15 = 547,893.60/x
  3. Step 3: Cross multiply
    628,273.14x = 866,628.15 × 547,893.60
  4. Step 4: Simplify right side
    628,273.14x = 474,820,016,964.84
  5. Step 5: Solve for x
    x = 474,820,016,964.84/628,273.14
  6. Step 6: Final answer
    x = 755,754.12

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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.