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Finding the Fourth Proportional to 1,158,978,689.58, 1,739,183,099.52 and 537,078,003.06

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Solution

The fourth proportional to 1,158,978,689.58, 1,739,183,099.52 and 537,078,003.06 is: 805,948,370.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,978,689.58 : 1,739,183,099.52 = 537,078,003.06 : x
  2. Step 2: Convert to fraction form
    1,158,978,689.58/1,739,183,099.52 = 537,078,003.06/x
  3. Step 3: Cross multiply
    1,158,978,689.58x = 1,739,183,099.52 × 537,078,003.06
  4. Step 4: Simplify right side
    1,158,978,689.58x = 934,076,986,045,902,720
  5. Step 5: Solve for x
    x = 934,076,986,045,902,720/1,158,978,689.58
  6. Step 6: Final answer
    x = 805,948,370.27

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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.