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Finding the Fourth Proportional to 504,650.87, 696,472.22 and 308,532.43

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Solution

The fourth proportional to 504,650.87, 696,472.22 and 308,532.43 is: 425,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,650.87 : 696,472.22 = 308,532.43 : x
  2. Step 2: Convert to fraction form
    504,650.87/696,472.22 = 308,532.43/x
  3. Step 3: Cross multiply
    504,650.87x = 696,472.22 × 308,532.43
  4. Step 4: Simplify right side
    504,650.87x = 214,884,261,439.07
  5. Step 5: Solve for x
    x = 214,884,261,439.07/504,650.87
  6. Step 6: Final answer
    x = 425,807.77

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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.