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Finding the Fourth Proportional to 3,870,978.54, 5,806,069.29 and 1,175,194.86

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Solution

The fourth proportional to 3,870,978.54, 5,806,069.29 and 1,175,194.86 is: 1,762,671.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,978.54 : 5,806,069.29 = 1,175,194.86 : x
  2. Step 2: Convert to fraction form
    3,870,978.54/5,806,069.29 = 1,175,194.86/x
  3. Step 3: Cross multiply
    3,870,978.54x = 5,806,069.29 × 1,175,194.86
  4. Step 4: Simplify right side
    3,870,978.54x = 6,823,262,786,411.85
  5. Step 5: Solve for x
    x = 6,823,262,786,411.85/3,870,978.54
  6. Step 6: Final answer
    x = 1,762,671.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.