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Finding the Fourth Proportional to 957,679,345.20, 1,436,519,017.80 and 957,679,345.20

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Solution

The fourth proportional to 957,679,345.20, 1,436,519,017.80 and 957,679,345.20 is: 1,436,519,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,679,345.20 : 1,436,519,017.80 = 957,679,345.20 : x
  2. Step 2: Convert to fraction form
    957,679,345.20/1,436,519,017.80 = 957,679,345.20/x
  3. Step 3: Cross multiply
    957,679,345.20x = 1,436,519,017.80 × 957,679,345.20
  4. Step 4: Simplify right side
    957,679,345.20x = 1,375,724,592,334,051,072
  5. Step 5: Solve for x
    x = 1,375,724,592,334,051,072/957,679,345.20
  6. Step 6: Final answer
    x = 1,436,519,017.80

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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.