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Finding the Fourth Proportional to 620,533,203.70, 930,799,805.55 and 362,040,301.30

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Solution

The fourth proportional to 620,533,203.70, 930,799,805.55 and 362,040,301.30 is: 543,060,451.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,533,203.70 : 930,799,805.55 = 362,040,301.30 : x
  2. Step 2: Convert to fraction form
    620,533,203.70/930,799,805.55 = 362,040,301.30/x
  3. Step 3: Cross multiply
    620,533,203.70x = 930,799,805.55 × 362,040,301.30
  4. Step 4: Simplify right side
    620,533,203.70x = 336,987,042,051,303,424
  5. Step 5: Solve for x
    x = 336,987,042,051,303,424/620,533,203.70
  6. Step 6: Final answer
    x = 543,060,451.95

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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.