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Finding the Fourth Proportional to 531,120.57, 796,916.34 and 278,340.97

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Solution

The fourth proportional to 531,120.57, 796,916.34 and 278,340.97 is: 417,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,120.57 : 796,916.34 = 278,340.97 : x
  2. Step 2: Convert to fraction form
    531,120.57/796,916.34 = 278,340.97/x
  3. Step 3: Cross multiply
    531,120.57x = 796,916.34 × 278,340.97
  4. Step 4: Simplify right side
    531,120.57x = 221,814,461,708.16
  5. Step 5: Solve for x
    x = 221,814,461,708.16/531,120.57
  6. Step 6: Final answer
    x = 417,634.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.