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Finding the Fourth Proportional to 922,275.40, 1,383,413.10 and 851,416.60

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Solution

The fourth proportional to 922,275.40, 1,383,413.10 and 851,416.60 is: 1,277,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,275.40 : 1,383,413.10 = 851,416.60 : x
  2. Step 2: Convert to fraction form
    922,275.40/1,383,413.10 = 851,416.60/x
  3. Step 3: Cross multiply
    922,275.40x = 1,383,413.10 × 851,416.60
  4. Step 4: Simplify right side
    922,275.40x = 1,177,860,877,997.46
  5. Step 5: Solve for x
    x = 1,177,860,877,997.46/922,275.40
  6. Step 6: Final answer
    x = 1,277,124.90

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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.