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Finding the Fourth Proportional to 443,232,040.70, 621,545,223.70 and 443,232,040.70

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Solution

The fourth proportional to 443,232,040.70, 621,545,223.70 and 443,232,040.70 is: 621,545,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,232,040.70 : 621,545,223.70 = 443,232,040.70 : x
  2. Step 2: Convert to fraction form
    443,232,040.70/621,545,223.70 = 443,232,040.70/x
  3. Step 3: Cross multiply
    443,232,040.70x = 621,545,223.70 × 443,232,040.70
  4. Step 4: Simplify right side
    443,232,040.70x = 275,488,757,887,889,024
  5. Step 5: Solve for x
    x = 275,488,757,887,889,024/443,232,040.70
  6. Step 6: Final answer
    x = 621,545,223.70

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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.