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Finding the Fourth Proportional to 2,772,810, 4,159,215 and 999,882

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Solution

The fourth proportional to 2,772,810, 4,159,215 and 999,882 is: 1,499,823

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772,810 : 4,159,215 = 999,882 : x
  2. Step 2: Convert to fraction form
    2,772,810/4,159,215 = 999,882/x
  3. Step 3: Cross multiply
    2,772,810x = 4,159,215 × 999,882
  4. Step 4: Simplify right side
    2,772,810x = 4,158,724,212,630
  5. Step 5: Solve for x
    x = 4,158,724,212,630/2,772,810
  6. Step 6: Final answer
    x = 1,499,823

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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.