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Finding the Fourth Proportional to 626,412.84, 864,451.99 and 339,932.86

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Solution

The fourth proportional to 626,412.84, 864,451.99 and 339,932.86 is: 469,108.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,412.84 : 864,451.99 = 339,932.86 : x
  2. Step 2: Convert to fraction form
    626,412.84/864,451.99 = 339,932.86/x
  3. Step 3: Cross multiply
    626,412.84x = 864,451.99 × 339,932.86
  4. Step 4: Simplify right side
    626,412.84x = 293,855,637,293.39
  5. Step 5: Solve for x
    x = 293,855,637,293.39/626,412.84
  6. Step 6: Final answer
    x = 469,108.58

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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.