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Finding the Fourth Proportional to 898,679,439.20, 1,259,849,908 and 898,679,439.20

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Solution

The fourth proportional to 898,679,439.20, 1,259,849,908 and 898,679,439.20 is: 1,259,849,908

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,679,439.20 : 1,259,849,908 = 898,679,439.20 : x
  2. Step 2: Convert to fraction form
    898,679,439.20/1,259,849,908 = 898,679,439.20/x
  3. Step 3: Cross multiply
    898,679,439.20x = 1,259,849,908 × 898,679,439.20
  4. Step 4: Simplify right side
    898,679,439.20x = 1,132,201,208,797,611,648
  5. Step 5: Solve for x
    x = 1,132,201,208,797,611,648/898,679,439.20
  6. Step 6: Final answer
    x = 1,259,849,908

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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.