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Finding the Fourth Proportional to 381,630,336.90, 572,445,505.35 and 381,630,336.90

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Solution

The fourth proportional to 381,630,336.90, 572,445,505.35 and 381,630,336.90 is: 572,445,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,630,336.90 : 572,445,505.35 = 381,630,336.90 : x
  2. Step 2: Convert to fraction form
    381,630,336.90/572,445,505.35 = 381,630,336.90/x
  3. Step 3: Cross multiply
    381,630,336.90x = 572,445,505.35 × 381,630,336.90
  4. Step 4: Simplify right side
    381,630,336.90x = 218,462,571,063,611,232
  5. Step 5: Solve for x
    x = 218,462,571,063,611,232/381,630,336.90
  6. Step 6: Final answer
    x = 572,445,505.35

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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.