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Finding the Fourth Proportional to 626,573.57, 864,672.21 and 340,093.58

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Solution

The fourth proportional to 626,573.57, 864,672.21 and 340,093.58 is: 469,329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,573.57 : 864,672.21 = 340,093.58 : x
  2. Step 2: Convert to fraction form
    626,573.57/864,672.21 = 340,093.58/x
  3. Step 3: Cross multiply
    626,573.57x = 864,672.21 × 340,093.58
  4. Step 4: Simplify right side
    626,573.57x = 294,069,463,102.05
  5. Step 5: Solve for x
    x = 294,069,463,102.05/626,573.57
  6. Step 6: Final answer
    x = 469,329.51

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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.