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Finding the Fourth Proportional to 628,866.66, 943,414.85 and 291,860.89

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Solution

The fourth proportional to 628,866.66, 943,414.85 and 291,860.89 is: 437,844.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,866.66 : 943,414.85 = 291,860.89 : x
  2. Step 2: Convert to fraction form
    628,866.66/943,414.85 = 291,860.89/x
  3. Step 3: Cross multiply
    628,866.66x = 943,414.85 × 291,860.89
  4. Step 4: Simplify right side
    628,866.66x = 275,345,897,760.22
  5. Step 5: Solve for x
    x = 275,345,897,760.22/628,866.66
  6. Step 6: Final answer
    x = 437,844.64

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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.