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Finding the Fourth Proportional to 2,664,605.70, 3,996,908.55 and 982,365.30

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Solution

The fourth proportional to 2,664,605.70, 3,996,908.55 and 982,365.30 is: 1,473,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664,605.70 : 3,996,908.55 = 982,365.30 : x
  2. Step 2: Convert to fraction form
    2,664,605.70/3,996,908.55 = 982,365.30/x
  3. Step 3: Cross multiply
    2,664,605.70x = 3,996,908.55 × 982,365.30
  4. Step 4: Simplify right side
    2,664,605.70x = 3,926,424,266,793.32
  5. Step 5: Solve for x
    x = 3,926,424,266,793.32/2,664,605.70
  6. Step 6: Final answer
    x = 1,473,547.95

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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.