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Finding the Fourth Proportional to 589,968,309.20, 824,425,082.80 and 589,968,309.20

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Solution

The fourth proportional to 589,968,309.20, 824,425,082.80 and 589,968,309.20 is: 824,425,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,968,309.20 : 824,425,082.80 = 589,968,309.20 : x
  2. Step 2: Convert to fraction form
    589,968,309.20/824,425,082.80 = 589,968,309.20/x
  3. Step 3: Cross multiply
    589,968,309.20x = 824,425,082.80 × 589,968,309.20
  4. Step 4: Simplify right side
    589,968,309.20x = 486,384,672,161,585,984
  5. Step 5: Solve for x
    x = 486,384,672,161,585,984/589,968,309.20
  6. Step 6: Final answer
    x = 824,425,082.80

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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.