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Finding the Fourth Proportional to 626,414.12, 864,453.81 and 339,934.13

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Solution

The fourth proportional to 626,414.12, 864,453.81 and 339,934.13 is: 469,110.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,414.12 : 864,453.81 = 339,934.13 : x
  2. Step 2: Convert to fraction form
    626,414.12/864,453.81 = 339,934.13/x
  3. Step 3: Cross multiply
    626,414.12x = 864,453.81 × 339,934.13
  4. Step 4: Simplify right side
    626,414.12x = 293,857,353,827.54
  5. Step 5: Solve for x
    x = 293,857,353,827.54/626,414.12
  6. Step 6: Final answer
    x = 469,110.36

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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.