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Finding the Fourth Proportional to 500,173.53, 690,051.06 and 328,186.43

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Solution

The fourth proportional to 500,173.53, 690,051.06 and 328,186.43 is: 452,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,173.53 : 690,051.06 = 328,186.43 : x
  2. Step 2: Convert to fraction form
    500,173.53/690,051.06 = 328,186.43/x
  3. Step 3: Cross multiply
    500,173.53x = 690,051.06 × 328,186.43
  4. Step 4: Simplify right side
    500,173.53x = 226,465,393,899.12
  5. Step 5: Solve for x
    x = 226,465,393,899.12/500,173.53
  6. Step 6: Final answer
    x = 452,773.65

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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.