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Finding the Fourth Proportional to 564,752,346.82, 779,116,485.11 and 352,691,020.76

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Solution

The fourth proportional to 564,752,346.82, 779,116,485.11 and 352,691,020.76 is: 486,562,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,752,346.82 : 779,116,485.11 = 352,691,020.76 : x
  2. Step 2: Convert to fraction form
    564,752,346.82/779,116,485.11 = 352,691,020.76/x
  3. Step 3: Cross multiply
    564,752,346.82x = 779,116,485.11 × 352,691,020.76
  4. Step 4: Simplify right side
    564,752,346.82x = 274,787,388,418,730,208
  5. Step 5: Solve for x
    x = 274,787,388,418,730,208/564,752,346.82
  6. Step 6: Final answer
    x = 486,562,632.22

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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.