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Finding the Fourth Proportional to 1,139,509,062.60, 1,598,940,658.20 and 1,139,509,062.60

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Solution

The fourth proportional to 1,139,509,062.60, 1,598,940,658.20 and 1,139,509,062.60 is: 1,598,940,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,509,062.60 : 1,598,940,658.20 = 1,139,509,062.60 : x
  2. Step 2: Convert to fraction form
    1,139,509,062.60/1,598,940,658.20 = 1,139,509,062.60/x
  3. Step 3: Cross multiply
    1,139,509,062.60x = 1,598,940,658.20 × 1,139,509,062.60
  4. Step 4: Simplify right side
    1,139,509,062.60x = 1,822,007,370,578,508,800
  5. Step 5: Solve for x
    x = 1,822,007,370,578,508,800/1,139,509,062.60
  6. Step 6: Final answer
    x = 1,598,940,658.20

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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.