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Finding the Fourth Proportional to 626,736.68, 864,896.62 and 340,256.77

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Solution

The fourth proportional to 626,736.68, 864,896.62 and 340,256.77 is: 469,554.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,736.68 : 864,896.62 = 340,256.77 : x
  2. Step 2: Convert to fraction form
    626,736.68/864,896.62 = 340,256.77/x
  3. Step 3: Cross multiply
    626,736.68x = 864,896.62 × 340,256.77
  4. Step 4: Simplify right side
    626,736.68x = 294,286,930,305.12
  5. Step 5: Solve for x
    x = 294,286,930,305.12/626,736.68
  6. Step 6: Final answer
    x = 469,554.34

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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.