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Finding the Fourth Proportional to 626,472.27, 864,534.60 and 339,992.69

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Solution

The fourth proportional to 626,472.27, 864,534.60 and 339,992.69 is: 469,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,472.27 : 864,534.60 = 339,992.69 : x
  2. Step 2: Convert to fraction form
    626,472.27/864,534.60 = 339,992.69/x
  3. Step 3: Cross multiply
    626,472.27x = 864,534.60 × 339,992.69
  4. Step 4: Simplify right side
    626,472.27x = 293,935,439,929.40
  5. Step 5: Solve for x
    x = 293,935,439,929.40/626,472.27
  6. Step 6: Final answer
    x = 469,191.46

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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.