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Finding the Fourth Proportional to 446,139.60, 667,265.40 and 399,094.80

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Solution

The fourth proportional to 446,139.60, 667,265.40 and 399,094.80 is: 596,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,139.60 : 667,265.40 = 399,094.80 : x
  2. Step 2: Convert to fraction form
    446,139.60/667,265.40 = 399,094.80/x
  3. Step 3: Cross multiply
    446,139.60x = 667,265.40 × 399,094.80
  4. Step 4: Simplify right side
    446,139.60x = 266,302,151,359.92
  5. Step 5: Solve for x
    x = 266,302,151,359.92/446,139.60
  6. Step 6: Final answer
    x = 596,903.19

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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.