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Finding the Fourth Proportional to 626,196.66, 864,151.70 and 339,716.70

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Solution

The fourth proportional to 626,196.66, 864,151.70 and 339,716.70 is: 468,809.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,196.66 : 864,151.70 = 339,716.70 : x
  2. Step 2: Convert to fraction form
    626,196.66/864,151.70 = 339,716.70/x
  3. Step 3: Cross multiply
    626,196.66x = 864,151.70 × 339,716.70
  4. Step 4: Simplify right side
    626,196.66x = 293,566,763,823.39
  5. Step 5: Solve for x
    x = 293,566,763,823.39/626,196.66
  6. Step 6: Final answer
    x = 468,809.21

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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.