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Finding the Fourth Proportional to 880,751,835.54, 1,321,642,918.98 and 328,435,833.06

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Solution

The fourth proportional to 880,751,835.54, 1,321,642,918.98 and 328,435,833.06 is: 492,845,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,751,835.54 : 1,321,642,918.98 = 328,435,833.06 : x
  2. Step 2: Convert to fraction form
    880,751,835.54/1,321,642,918.98 = 328,435,833.06/x
  3. Step 3: Cross multiply
    880,751,835.54x = 1,321,642,918.98 × 328,435,833.06
  4. Step 4: Simplify right side
    880,751,835.54x = 434,074,893,103,046,400
  5. Step 5: Solve for x
    x = 434,074,893,103,046,400/880,751,835.54
  6. Step 6: Final answer
    x = 492,845,856.90

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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.