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Finding the Fourth Proportional to 516,347.60, 773,861.65 and 416,554.79

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Solution

The fourth proportional to 516,347.60, 773,861.65 and 416,554.79 is: 624,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,347.60 : 773,861.65 = 416,554.79 : x
  2. Step 2: Convert to fraction form
    516,347.60/773,861.65 = 416,554.79/x
  3. Step 3: Cross multiply
    516,347.60x = 773,861.65 × 416,554.79
  4. Step 4: Simplify right side
    516,347.60x = 322,355,777,104.80
  5. Step 5: Solve for x
    x = 322,355,777,104.80/516,347.60
  6. Step 6: Final answer
    x = 624,299.94

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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.