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Finding the Fourth Proportional to 531,108.95, 796,898.96 and 278,329.37

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Solution

The fourth proportional to 531,108.95, 796,898.96 and 278,329.37 is: 417,617.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,108.95 : 796,898.96 = 278,329.37 : x
  2. Step 2: Convert to fraction form
    531,108.95/796,898.96 = 278,329.37/x
  3. Step 3: Cross multiply
    531,108.95x = 796,898.96 × 278,329.37
  4. Step 4: Simplify right side
    531,108.95x = 221,800,381,158.05
  5. Step 5: Solve for x
    x = 221,800,381,158.05/531,108.95
  6. Step 6: Final answer
    x = 417,617.48

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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.