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Finding the Fourth Proportional to 531,996,576.84, 734,277,676.50 and 312,050,861.64

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Solution

The fourth proportional to 531,996,576.84, 734,277,676.50 and 312,050,861.64 is: 430,701,984.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,996,576.84 : 734,277,676.50 = 312,050,861.64 : x
  2. Step 2: Convert to fraction form
    531,996,576.84/734,277,676.50 = 312,050,861.64/x
  3. Step 3: Cross multiply
    531,996,576.84x = 734,277,676.50 × 312,050,861.64
  4. Step 4: Simplify right side
    531,996,576.84x = 229,131,981,634,842,176
  5. Step 5: Solve for x
    x = 229,131,981,634,842,176/531,996,576.84
  6. Step 6: Final answer
    x = 430,701,984.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.