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Finding the Fourth Proportional to 331,878,000.80, 496,860,407.40 and 331,878,000.80

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Solution

The fourth proportional to 331,878,000.80, 496,860,407.40 and 331,878,000.80 is: 496,860,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,878,000.80 : 496,860,407.40 = 331,878,000.80 : x
  2. Step 2: Convert to fraction form
    331,878,000.80/496,860,407.40 = 331,878,000.80/x
  3. Step 3: Cross multiply
    331,878,000.80x = 496,860,407.40 × 331,878,000.80
  4. Step 4: Simplify right side
    331,878,000.80x = 164,897,038,684,585,536
  5. Step 5: Solve for x
    x = 164,897,038,684,585,536/331,878,000.80
  6. Step 6: Final answer
    x = 496,860,407.40

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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.