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Finding the Fourth Proportional to 626,635.27, 864,750.72 and 340,154.97

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Solution

The fourth proportional to 626,635.27, 864,750.72 and 340,154.97 is: 469,410.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,635.27 : 864,750.72 = 340,154.97 : x
  2. Step 2: Convert to fraction form
    626,635.27/864,750.72 = 340,154.97/x
  3. Step 3: Cross multiply
    626,635.27x = 864,750.72 × 340,154.97
  4. Step 4: Simplify right side
    626,635.27x = 294,149,255,219.08
  5. Step 5: Solve for x
    x = 294,149,255,219.08/626,635.27
  6. Step 6: Final answer
    x = 469,410.63

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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.