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Finding the Fourth Proportional to 885,346,487.10, 1,328,019,730.65 and 271,929,728.70

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Solution

The fourth proportional to 885,346,487.10, 1,328,019,730.65 and 271,929,728.70 is: 407,894,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,346,487.10 : 1,328,019,730.65 = 271,929,728.70 : x
  2. Step 2: Convert to fraction form
    885,346,487.10/1,328,019,730.65 = 271,929,728.70/x
  3. Step 3: Cross multiply
    885,346,487.10x = 1,328,019,730.65 × 271,929,728.70
  4. Step 4: Simplify right side
    885,346,487.10x = 361,128,045,063,901,568
  5. Step 5: Solve for x
    x = 361,128,045,063,901,568/885,346,487.10
  6. Step 6: Final answer
    x = 407,894,593.05

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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.