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Finding the Fourth Proportional to 1,395,472,445.04, 1,925,793,052.29 and 768,981,229.32

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Solution

The fourth proportional to 1,395,472,445.04, 1,925,793,052.29 and 768,981,229.32 is: 1,061,216,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,472,445.04 : 1,925,793,052.29 = 768,981,229.32 : x
  2. Step 2: Convert to fraction form
    1,395,472,445.04/1,925,793,052.29 = 768,981,229.32/x
  3. Step 3: Cross multiply
    1,395,472,445.04x = 1,925,793,052.29 × 768,981,229.32
  4. Step 4: Simplify right side
    1,395,472,445.04x = 1,480,898,708,765,879,296
  5. Step 5: Solve for x
    x = 1,480,898,708,765,879,296/1,395,472,445.04
  6. Step 6: Final answer
    x = 1,061,216,732.75

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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.