Home / 610,371,171.12-842,476,865-398,673,512.56

Finding the Fourth Proportional to 610,371,171.12, 842,476,865 and 398,673,512.56

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Solution

The fourth proportional to 610,371,171.12, 842,476,865 and 398,673,512.56 is: 550,276,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,371,171.12 : 842,476,865 = 398,673,512.56 : x
  2. Step 2: Convert to fraction form
    610,371,171.12/842,476,865 = 398,673,512.56/x
  3. Step 3: Cross multiply
    610,371,171.12x = 842,476,865 × 398,673,512.56
  4. Step 4: Simplify right side
    610,371,171.12x = 335,873,211,020,086,912
  5. Step 5: Solve for x
    x = 335,873,211,020,086,912/610,371,171.12
  6. Step 6: Final answer
    x = 550,276,990.32

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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.