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Finding the Fourth Proportional to 572,838.66, 790,413.12 and 331,032.60

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Solution

The fourth proportional to 572,838.66, 790,413.12 and 331,032.60 is: 456,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,838.66 : 790,413.12 = 331,032.60 : x
  2. Step 2: Convert to fraction form
    572,838.66/790,413.12 = 331,032.60/x
  3. Step 3: Cross multiply
    572,838.66x = 790,413.12 × 331,032.60
  4. Step 4: Simplify right side
    572,838.66x = 261,652,510,187.71
  5. Step 5: Solve for x
    x = 261,652,510,187.71/572,838.66
  6. Step 6: Final answer
    x = 456,764.75

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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.