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Finding the Fourth Proportional to 446,211.60, 667,373.40 and 399,166.80

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Solution

The fourth proportional to 446,211.60, 667,373.40 and 399,166.80 is: 597,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,211.60 : 667,373.40 = 399,166.80 : x
  2. Step 2: Convert to fraction form
    446,211.60/667,373.40 = 399,166.80/x
  3. Step 3: Cross multiply
    446,211.60x = 667,373.40 × 399,166.80
  4. Step 4: Simplify right side
    446,211.60x = 266,393,304,483.12
  5. Step 5: Solve for x
    x = 266,393,304,483.12/446,211.60
  6. Step 6: Final answer
    x = 597,011.16

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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.