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Finding the Fourth Proportional to 1,177,737.71, 1,766,615.40 and 644,968.11

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Solution

The fourth proportional to 1,177,737.71, 1,766,615.40 and 644,968.11 is: 967,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,737.71 : 1,766,615.40 = 644,968.11 : x
  2. Step 2: Convert to fraction form
    1,177,737.71/1,766,615.40 = 644,968.11/x
  3. Step 3: Cross multiply
    1,177,737.71x = 1,766,615.40 × 644,968.11
  4. Step 4: Simplify right side
    1,177,737.71x = 1,139,410,595,634.89
  5. Step 5: Solve for x
    x = 1,139,410,595,634.89/1,177,737.71
  6. Step 6: Final answer
    x = 967,457.00

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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.