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Finding the Fourth Proportional to 527,646.91, 789,578.43 and 456,813.17

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Solution

The fourth proportional to 527,646.91, 789,578.43 and 456,813.17 is: 683,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,646.91 : 789,578.43 = 456,813.17 : x
  2. Step 2: Convert to fraction form
    527,646.91/789,578.43 = 456,813.17/x
  3. Step 3: Cross multiply
    527,646.91x = 789,578.43 × 456,813.17
  4. Step 4: Simplify right side
    527,646.91x = 360,689,825,571.92
  5. Step 5: Solve for x
    x = 360,689,825,571.92/527,646.91
  6. Step 6: Final answer
    x = 683,581.80

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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.