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Finding the Fourth Proportional to 653,424,035.10, 978,941,659.05 and 531,595,887.90

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Solution

The fourth proportional to 653,424,035.10, 978,941,659.05 and 531,595,887.90 is: 796,422,127.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,424,035.10 : 978,941,659.05 = 531,595,887.90 : x
  2. Step 2: Convert to fraction form
    653,424,035.10/978,941,659.05 = 531,595,887.90/x
  3. Step 3: Cross multiply
    653,424,035.10x = 978,941,659.05 × 531,595,887.90
  4. Step 4: Simplify right side
    653,424,035.10x = 520,401,360,444,983,744
  5. Step 5: Solve for x
    x = 520,401,360,444,983,744/653,424,035.10
  6. Step 6: Final answer
    x = 796,422,127.88

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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.