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Finding the Fourth Proportional to 548,741.40, 824,861.70 and 517,248.60

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Solution

The fourth proportional to 548,741.40, 824,861.70 and 517,248.60 is: 777,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,741.40 : 824,861.70 = 517,248.60 : x
  2. Step 2: Convert to fraction form
    548,741.40/824,861.70 = 517,248.60/x
  3. Step 3: Cross multiply
    548,741.40x = 824,861.70 × 517,248.60
  4. Step 4: Simplify right side
    548,741.40x = 426,658,559,518.62
  5. Step 5: Solve for x
    x = 426,658,559,518.62/548,741.40
  6. Step 6: Final answer
    x = 777,522.09

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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.