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Finding the Fourth Proportional to 482,037.44, 664,866.23 and 318,504.51

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Solution

The fourth proportional to 482,037.44, 664,866.23 and 318,504.51 is: 439,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,037.44 : 664,866.23 = 318,504.51 : x
  2. Step 2: Convert to fraction form
    482,037.44/664,866.23 = 318,504.51/x
  3. Step 3: Cross multiply
    482,037.44x = 664,866.23 × 318,504.51
  4. Step 4: Simplify right side
    482,037.44x = 211,762,891,209.18
  5. Step 5: Solve for x
    x = 211,762,891,209.18/482,037.44
  6. Step 6: Final answer
    x = 439,307.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.