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Finding the Fourth Proportional to 569,641.92, 853,715.52 and 419,177.76

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Solution

The fourth proportional to 569,641.92, 853,715.52 and 419,177.76 is: 628,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,641.92 : 853,715.52 = 419,177.76 : x
  2. Step 2: Convert to fraction form
    569,641.92/853,715.52 = 419,177.76/x
  3. Step 3: Cross multiply
    569,641.92x = 853,715.52 × 419,177.76
  4. Step 4: Simplify right side
    569,641.92x = 357,858,559,350.84
  5. Step 5: Solve for x
    x = 357,858,559,350.84/569,641.92
  6. Step 6: Final answer
    x = 628,216.69

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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.