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Finding the Fourth Proportional to 1,140,318,011.04, 1,573,638,855.57 and 618,797,243.04

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Solution

The fourth proportional to 1,140,318,011.04, 1,573,638,855.57 and 618,797,243.04 is: 853,940,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,318,011.04 : 1,573,638,855.57 = 618,797,243.04 : x
  2. Step 2: Convert to fraction form
    1,140,318,011.04/1,573,638,855.57 = 618,797,243.04/x
  3. Step 3: Cross multiply
    1,140,318,011.04x = 1,573,638,855.57 × 618,797,243.04
  4. Step 4: Simplify right side
    1,140,318,011.04x = 973,763,385,367,336,704
  5. Step 5: Solve for x
    x = 973,763,385,367,336,704/1,140,318,011.04
  6. Step 6: Final answer
    x = 853,940,195.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.