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Finding the Fourth Proportional to 463,554,728.40, 695,425,404.60 and 136,029,608.40

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Solution

The fourth proportional to 463,554,728.40, 695,425,404.60 and 136,029,608.40 is: 204,071,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,554,728.40 : 695,425,404.60 = 136,029,608.40 : x
  2. Step 2: Convert to fraction form
    463,554,728.40/695,425,404.60 = 136,029,608.40/x
  3. Step 3: Cross multiply
    463,554,728.40x = 695,425,404.60 × 136,029,608.40
  4. Step 4: Simplify right side
    463,554,728.40x = 94,598,445,459,149,568
  5. Step 5: Solve for x
    x = 94,598,445,459,149,568/463,554,728.40
  6. Step 6: Final answer
    x = 204,071,794.90

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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.