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Finding the Fourth Proportional to 1,438,599,859.90, 2,016,080,537.30 and 1,438,599,859.90

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Solution

The fourth proportional to 1,438,599,859.90, 2,016,080,537.30 and 1,438,599,859.90 is: 2,016,080,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,599,859.90 : 2,016,080,537.30 = 1,438,599,859.90 : x
  2. Step 2: Convert to fraction form
    1,438,599,859.90/2,016,080,537.30 = 1,438,599,859.90/x
  3. Step 3: Cross multiply
    1,438,599,859.90x = 2,016,080,537.30 × 1,438,599,859.90
  4. Step 4: Simplify right side
    1,438,599,859.90x = 2,900,333,178,506,896,896
  5. Step 5: Solve for x
    x = 2,900,333,178,506,896,896/1,438,599,859.90
  6. Step 6: Final answer
    x = 2,016,080,537.30

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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.