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Finding the Fourth Proportional to 531,113.81, 796,906.19 and 278,334.20

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Solution

The fourth proportional to 531,113.81, 796,906.19 and 278,334.20 is: 417,624.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,113.81 : 796,906.19 = 278,334.20 : x
  2. Step 2: Convert to fraction form
    531,113.81/796,906.19 = 278,334.20/x
  3. Step 3: Cross multiply
    531,113.81x = 796,906.19 × 278,334.20
  4. Step 4: Simplify right side
    531,113.81x = 221,806,249,556.80
  5. Step 5: Solve for x
    x = 221,806,249,556.80/531,113.81
  6. Step 6: Final answer
    x = 417,624.71

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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.