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Finding the Fourth Proportional to 1,895,480.86, 2,843,719.98 and 681,180.16

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Solution

The fourth proportional to 1,895,480.86, 2,843,719.98 and 681,180.16 is: 1,021,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895,480.86 : 2,843,719.98 = 681,180.16 : x
  2. Step 2: Convert to fraction form
    1,895,480.86/2,843,719.98 = 681,180.16/x
  3. Step 3: Cross multiply
    1,895,480.86x = 2,843,719.98 × 681,180.16
  4. Step 4: Simplify right side
    1,895,480.86x = 1,937,085,630,971.60
  5. Step 5: Solve for x
    x = 1,937,085,630,971.60/1,895,480.86
  6. Step 6: Final answer
    x = 1,021,949.45

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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.