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Finding the Fourth Proportional to 890,496,371.20, 1,244,146,880 and 890,496,371.20

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Solution

The fourth proportional to 890,496,371.20, 1,244,146,880 and 890,496,371.20 is: 1,244,146,880

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,496,371.20 : 1,244,146,880 = 890,496,371.20 : x
  2. Step 2: Convert to fraction form
    890,496,371.20/1,244,146,880 = 890,496,371.20/x
  3. Step 3: Cross multiply
    890,496,371.20x = 1,244,146,880 × 890,496,371.20
  4. Step 4: Simplify right side
    890,496,371.20x = 1,107,908,281,879,801,856
  5. Step 5: Solve for x
    x = 1,107,908,281,879,801,856/890,496,371.20
  6. Step 6: Final answer
    x = 1,244,146,880

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.