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Finding the Fourth Proportional to 881,375,579.10, 1,216,298,243.57 and 484,890,062.90

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Solution

The fourth proportional to 881,375,579.10, 1,216,298,243.57 and 484,890,062.90 is: 669,148,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,375,579.10 : 1,216,298,243.57 = 484,890,062.90 : x
  2. Step 2: Convert to fraction form
    881,375,579.10/1,216,298,243.57 = 484,890,062.90/x
  3. Step 3: Cross multiply
    881,375,579.10x = 1,216,298,243.57 × 484,890,062.90
  4. Step 4: Simplify right side
    881,375,579.10x = 589,770,931,821,310,848
  5. Step 5: Solve for x
    x = 589,770,931,821,310,848/881,375,579.10
  6. Step 6: Final answer
    x = 669,148,256.21

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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.