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Finding the Fourth Proportional to 543,231.28, 749,653.52 and 301,515.96

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Solution

The fourth proportional to 543,231.28, 749,653.52 and 301,515.96 is: 416,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,231.28 : 749,653.52 = 301,515.96 : x
  2. Step 2: Convert to fraction form
    543,231.28/749,653.52 = 301,515.96/x
  3. Step 3: Cross multiply
    543,231.28x = 749,653.52 × 301,515.96
  4. Step 4: Simplify right side
    543,231.28x = 226,032,500,750.18
  5. Step 5: Solve for x
    x = 226,032,500,750.18/543,231.28
  6. Step 6: Final answer
    x = 416,088.89

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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.