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Finding the Fourth Proportional to 626,473.17, 864,533.66 and 339,993.45

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Solution

The fourth proportional to 626,473.17, 864,533.66 and 339,993.45 is: 469,191.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,473.17 : 864,533.66 = 339,993.45 : x
  2. Step 2: Convert to fraction form
    626,473.17/864,533.66 = 339,993.45/x
  3. Step 3: Cross multiply
    626,473.17x = 864,533.66 × 339,993.45
  4. Step 4: Simplify right side
    626,473.17x = 293,935,780,004.56
  5. Step 5: Solve for x
    x = 293,935,780,004.56/626,473.17
  6. Step 6: Final answer
    x = 469,191.33

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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.