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Finding the Fourth Proportional to 354,715.26, 530,692.65 and 324,929.94

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Solution

The fourth proportional to 354,715.26, 530,692.65 and 324,929.94 is: 486,130.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,715.26 : 530,692.65 = 324,929.94 : x
  2. Step 2: Convert to fraction form
    354,715.26/530,692.65 = 324,929.94/x
  3. Step 3: Cross multiply
    354,715.26x = 530,692.65 × 324,929.94
  4. Step 4: Simplify right side
    354,715.26x = 172,437,930,922.94
  5. Step 5: Solve for x
    x = 172,437,930,922.94/354,715.26
  6. Step 6: Final answer
    x = 486,130.57

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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.