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Finding the Fourth Proportional to 680,032.41, 938,407.64 and 374,059.41

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Solution

The fourth proportional to 680,032.41, 938,407.64 and 374,059.41 is: 516,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,032.41 : 938,407.64 = 374,059.41 : x
  2. Step 2: Convert to fraction form
    680,032.41/938,407.64 = 374,059.41/x
  3. Step 3: Cross multiply
    680,032.41x = 938,407.64 × 374,059.41
  4. Step 4: Simplify right side
    680,032.41x = 351,020,206,287.60
  5. Step 5: Solve for x
    x = 351,020,206,287.60/680,032.41
  6. Step 6: Final answer
    x = 516,181.58

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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.