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Finding the Fourth Proportional to 626,819.28, 865,025.64 and 340,351.44

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Solution

The fourth proportional to 626,819.28, 865,025.64 and 340,351.44 is: 469,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,819.28 : 865,025.64 = 340,351.44 : x
  2. Step 2: Convert to fraction form
    626,819.28/865,025.64 = 340,351.44/x
  3. Step 3: Cross multiply
    626,819.28x = 865,025.64 × 340,351.44
  4. Step 4: Simplify right side
    626,819.28x = 294,412,722,210.92
  5. Step 5: Solve for x
    x = 294,412,722,210.92/626,819.28
  6. Step 6: Final answer
    x = 469,693.15

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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.