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Finding the Fourth Proportional to 1,839,969.80, 2,754,705.90 and 1,630,017.80

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Solution

The fourth proportional to 1,839,969.80, 2,754,705.90 and 1,630,017.80 is: 2,440,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839,969.80 : 2,754,705.90 = 1,630,017.80 : x
  2. Step 2: Convert to fraction form
    1,839,969.80/2,754,705.90 = 1,630,017.80/x
  3. Step 3: Cross multiply
    1,839,969.80x = 2,754,705.90 × 1,630,017.80
  4. Step 4: Simplify right side
    1,839,969.80x = 4,490,219,650,765.02
  5. Step 5: Solve for x
    x = 4,490,219,650,765.02/1,839,969.80
  6. Step 6: Final answer
    x = 2,440,376.82

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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.