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Finding the Fourth Proportional to 5,192,443.70, 7,788,665.55 and 2,952,955.70

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Solution

The fourth proportional to 5,192,443.70, 7,788,665.55 and 2,952,955.70 is: 4,429,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192,443.70 : 7,788,665.55 = 2,952,955.70 : x
  2. Step 2: Convert to fraction form
    5,192,443.70/7,788,665.55 = 2,952,955.70/x
  3. Step 3: Cross multiply
    5,192,443.70x = 7,788,665.55 × 2,952,955.70
  4. Step 4: Simplify right side
    5,192,443.70x = 22,999,584,331,266.14
  5. Step 5: Solve for x
    x = 22,999,584,331,266.14/5,192,443.70
  6. Step 6: Final answer
    x = 4,429,433.55

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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.