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Finding the Fourth Proportional to 664,014.66, 916,338.33 and 362,206.50

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Solution

The fourth proportional to 664,014.66, 916,338.33 and 362,206.50 is: 499,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,014.66 : 916,338.33 = 362,206.50 : x
  2. Step 2: Convert to fraction form
    664,014.66/916,338.33 = 362,206.50/x
  3. Step 3: Cross multiply
    664,014.66x = 916,338.33 × 362,206.50
  4. Step 4: Simplify right side
    664,014.66x = 331,903,699,325.15
  5. Step 5: Solve for x
    x = 331,903,699,325.15/664,014.66
  6. Step 6: Final answer
    x = 499,843.93

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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.