Home / 438,620,640.80-657,930,961.20-352,527,198.80

Finding the Fourth Proportional to 438,620,640.80, 657,930,961.20 and 352,527,198.80

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Solution

The fourth proportional to 438,620,640.80, 657,930,961.20 and 352,527,198.80 is: 528,790,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,620,640.80 : 657,930,961.20 = 352,527,198.80 : x
  2. Step 2: Convert to fraction form
    438,620,640.80/657,930,961.20 = 352,527,198.80/x
  3. Step 3: Cross multiply
    438,620,640.80x = 657,930,961.20 × 352,527,198.80
  4. Step 4: Simplify right side
    438,620,640.80x = 231,938,558,755,627,520
  5. Step 5: Solve for x
    x = 231,938,558,755,627,520/438,620,640.80
  6. Step 6: Final answer
    x = 528,790,798.20

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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.