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Finding the Fourth Proportional to 443,232,115.95, 621,545,329.05 and 443,232,115.95

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Solution

The fourth proportional to 443,232,115.95, 621,545,329.05 and 443,232,115.95 is: 621,545,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,232,115.95 : 621,545,329.05 = 443,232,115.95 : x
  2. Step 2: Convert to fraction form
    443,232,115.95/621,545,329.05 = 443,232,115.95/x
  3. Step 3: Cross multiply
    443,232,115.95x = 621,545,329.05 × 443,232,115.95
  4. Step 4: Simplify right side
    443,232,115.95x = 275,488,851,353,670,464
  5. Step 5: Solve for x
    x = 275,488,851,353,670,464/443,232,115.95
  6. Step 6: Final answer
    x = 621,545,329.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.