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Finding the Fourth Proportional to 547,383,673.86, 754,783,973.02 and 348,830,434.50

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Solution

The fourth proportional to 547,383,673.86, 754,783,973.02 and 348,830,434.50 is: 481,000,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,383,673.86 : 754,783,973.02 = 348,830,434.50 : x
  2. Step 2: Convert to fraction form
    547,383,673.86/754,783,973.02 = 348,830,434.50/x
  3. Step 3: Cross multiply
    547,383,673.86x = 754,783,973.02 × 348,830,434.50
  4. Step 4: Simplify right side
    547,383,673.86x = 263,291,621,262,202,880
  5. Step 5: Solve for x
    x = 263,291,621,262,202,880/547,383,673.86
  6. Step 6: Final answer
    x = 481,000,135.44

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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.