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Finding the Fourth Proportional to 318,860,432.60, 477,440,343.30 and 318,860,432.60

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Solution

The fourth proportional to 318,860,432.60, 477,440,343.30 and 318,860,432.60 is: 477,440,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,860,432.60 : 477,440,343.30 = 318,860,432.60 : x
  2. Step 2: Convert to fraction form
    318,860,432.60/477,440,343.30 = 318,860,432.60/x
  3. Step 3: Cross multiply
    318,860,432.60x = 477,440,343.30 × 318,860,432.60
  4. Step 4: Simplify right side
    318,860,432.60x = 152,236,834,405,330,528
  5. Step 5: Solve for x
    x = 152,236,834,405,330,528/318,860,432.60
  6. Step 6: Final answer
    x = 477,440,343.30

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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.