Home / 626,719.07-864,429.67-385,137.59

Finding the Fourth Proportional to 626,719.07, 864,429.67 and 385,137.59

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Solution

The fourth proportional to 626,719.07, 864,429.67 and 385,137.59 is: 531,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,719.07 : 864,429.67 = 385,137.59 : x
  2. Step 2: Convert to fraction form
    626,719.07/864,429.67 = 385,137.59/x
  3. Step 3: Cross multiply
    626,719.07x = 864,429.67 × 385,137.59
  4. Step 4: Simplify right side
    626,719.07x = 332,924,355,987.57
  5. Step 5: Solve for x
    x = 332,924,355,987.57/626,719.07
  6. Step 6: Final answer
    x = 531,217.85

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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.