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Finding the Fourth Proportional to 672,915,896.90, 1,007,673,234.15 and 536,867,000.90

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Solution

The fourth proportional to 672,915,896.90, 1,007,673,234.15 and 536,867,000.90 is: 803,943,716.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,915,896.90 : 1,007,673,234.15 = 536,867,000.90 : x
  2. Step 2: Convert to fraction form
    672,915,896.90/1,007,673,234.15 = 536,867,000.90/x
  3. Step 3: Cross multiply
    672,915,896.90x = 1,007,673,234.15 × 536,867,000.90
  4. Step 4: Simplify right side
    672,915,896.90x = 540,986,507,105,313,920
  5. Step 5: Solve for x
    x = 540,986,507,105,313,920/672,915,896.90
  6. Step 6: Final answer
    x = 803,943,716.59

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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.