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Finding the Fourth Proportional to 626,193.52, 864,147.40 and 339,713.57

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Solution

The fourth proportional to 626,193.52, 864,147.40 and 339,713.57 is: 468,804.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,193.52 : 864,147.40 = 339,713.57 : x
  2. Step 2: Convert to fraction form
    626,193.52/864,147.40 = 339,713.57/x
  3. Step 3: Cross multiply
    626,193.52x = 864,147.40 × 339,713.57
  4. Step 4: Simplify right side
    626,193.52x = 293,562,599,571.30
  5. Step 5: Solve for x
    x = 293,562,599,571.30/626,193.52
  6. Step 6: Final answer
    x = 468,804.92

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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.