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Finding the Fourth Proportional to 696,958.02, 961,447.86 and 455,382

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Solution

The fourth proportional to 696,958.02, 961,447.86 and 455,382 is: 628,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,958.02 : 961,447.86 = 455,382 : x
  2. Step 2: Convert to fraction form
    696,958.02/961,447.86 = 455,382/x
  3. Step 3: Cross multiply
    696,958.02x = 961,447.86 × 455,382
  4. Step 4: Simplify right side
    696,958.02x = 437,826,049,382.52
  5. Step 5: Solve for x
    x = 437,826,049,382.52/696,958.02
  6. Step 6: Final answer
    x = 628,195.73

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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.