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Finding the Fourth Proportional to 626,476.59, 864,538.14 and 339,996.68

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Solution

The fourth proportional to 626,476.59, 864,538.14 and 339,996.68 is: 469,195.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,476.59 : 864,538.14 = 339,996.68 : x
  2. Step 2: Convert to fraction form
    626,476.59/864,538.14 = 339,996.68/x
  3. Step 3: Cross multiply
    626,476.59x = 864,538.14 × 339,996.68
  4. Step 4: Simplify right side
    626,476.59x = 293,940,097,527.69
  5. Step 5: Solve for x
    x = 293,940,097,527.69/626,476.59
  6. Step 6: Final answer
    x = 469,195.66

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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.