Home / 626,416.34-864,456.82-339,936.36

Finding the Fourth Proportional to 626,416.34, 864,456.82 and 339,936.36

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Solution

The fourth proportional to 626,416.34, 864,456.82 and 339,936.36 is: 469,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,416.34 : 864,456.82 = 339,936.36 : x
  2. Step 2: Convert to fraction form
    626,416.34/864,456.82 = 339,936.36/x
  3. Step 3: Cross multiply
    626,416.34x = 864,456.82 × 339,936.36
  4. Step 4: Simplify right side
    626,416.34x = 293,860,304,767.98
  5. Step 5: Solve for x
    x = 293,860,304,767.98/626,416.34
  6. Step 6: Final answer
    x = 469,113.41

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1.5x scale

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.