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Finding the Fourth Proportional to 434,421,000.20, 651,631,500.30 and 434,421,000.20

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Solution

The fourth proportional to 434,421,000.20, 651,631,500.30 and 434,421,000.20 is: 651,631,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,421,000.20 : 651,631,500.30 = 434,421,000.20 : x
  2. Step 2: Convert to fraction form
    434,421,000.20/651,631,500.30 = 434,421,000.20/x
  3. Step 3: Cross multiply
    434,421,000.20x = 651,631,500.30 × 434,421,000.20
  4. Step 4: Simplify right side
    434,421,000.20x = 283,082,408,122,152,576
  5. Step 5: Solve for x
    x = 283,082,408,122,152,576/434,421,000.20
  6. Step 6: Final answer
    x = 651,631,500.30

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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.