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Finding the Fourth Proportional to 381,634,720.40, 572,452,080.60 and 381,634,720.40

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Solution

The fourth proportional to 381,634,720.40, 572,452,080.60 and 381,634,720.40 is: 572,452,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,634,720.40 : 572,452,080.60 = 381,634,720.40 : x
  2. Step 2: Convert to fraction form
    381,634,720.40/572,452,080.60 = 381,634,720.40/x
  3. Step 3: Cross multiply
    381,634,720.40x = 572,452,080.60 × 381,634,720.40
  4. Step 4: Simplify right side
    381,634,720.40x = 218,467,589,722,179,264
  5. Step 5: Solve for x
    x = 218,467,589,722,179,264/381,634,720.40
  6. Step 6: Final answer
    x = 572,452,080.60

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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.