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Finding the Fourth Proportional to 626,191.65, 864,144.80 and 339,711.71

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Solution

The fourth proportional to 626,191.65, 864,144.80 and 339,711.71 is: 468,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,191.65 : 864,144.80 = 339,711.71 : x
  2. Step 2: Convert to fraction form
    626,191.65/864,144.80 = 339,711.71/x
  3. Step 3: Cross multiply
    626,191.65x = 864,144.80 × 339,711.71
  4. Step 4: Simplify right side
    626,191.65x = 293,560,101,676.33
  5. Step 5: Solve for x
    x = 293,560,101,676.33/626,191.65
  6. Step 6: Final answer
    x = 468,802.33

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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.