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Finding the Fourth Proportional to 568,895.67, 785,043.50 and 339,711.57

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Solution

The fourth proportional to 568,895.67, 785,043.50 and 339,711.57 is: 468,782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,895.67 : 785,043.50 = 339,711.57 : x
  2. Step 2: Convert to fraction form
    568,895.67/785,043.50 = 339,711.57/x
  3. Step 3: Cross multiply
    568,895.67x = 785,043.50 × 339,711.57
  4. Step 4: Simplify right side
    568,895.67x = 266,688,358,204.74
  5. Step 5: Solve for x
    x = 266,688,358,204.74/568,895.67
  6. Step 6: Final answer
    x = 468,782.54

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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.