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Finding the Fourth Proportional to 626,239.96, 864,212.70 and 339,759.97

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Solution

The fourth proportional to 626,239.96, 864,212.70 and 339,759.97 is: 468,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,239.96 : 864,212.70 = 339,759.97 : x
  2. Step 2: Convert to fraction form
    626,239.96/864,212.70 = 339,759.97/x
  3. Step 3: Cross multiply
    626,239.96x = 864,212.70 × 339,759.97
  4. Step 4: Simplify right side
    626,239.96x = 293,624,881,025.62
  5. Step 5: Solve for x
    x = 293,624,881,025.62/626,239.96
  6. Step 6: Final answer
    x = 468,869.60

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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.