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Finding the Fourth Proportional to 1,309,332,890.16, 1,964,367,801 and 572,467,505.04

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Solution

The fourth proportional to 1,309,332,890.16, 1,964,367,801 and 572,467,505.04 is: 858,862,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,332,890.16 : 1,964,367,801 = 572,467,505.04 : x
  2. Step 2: Convert to fraction form
    1,309,332,890.16/1,964,367,801 = 572,467,505.04/x
  3. Step 3: Cross multiply
    1,309,332,890.16x = 1,964,367,801 × 572,467,505.04
  4. Step 4: Simplify right side
    1,309,332,890.16x = 1,124,536,734,019,381,120
  5. Step 5: Solve for x
    x = 1,124,536,734,019,381,120/1,309,332,890.16
  6. Step 6: Final answer
    x = 858,862,358.44

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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.