Home / 2,811,706.40-4,217,905.20-917,933.60

Finding the Fourth Proportional to 2,811,706.40, 4,217,905.20 and 917,933.60

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Solution

The fourth proportional to 2,811,706.40, 4,217,905.20 and 917,933.60 is: 1,377,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,706.40 : 4,217,905.20 = 917,933.60 : x
  2. Step 2: Convert to fraction form
    2,811,706.40/4,217,905.20 = 917,933.60/x
  3. Step 3: Cross multiply
    2,811,706.40x = 4,217,905.20 × 917,933.60
  4. Step 4: Simplify right side
    2,811,706.40x = 3,871,756,904,694.72
  5. Step 5: Solve for x
    x = 3,871,756,904,694.72/2,811,706.40
  6. Step 6: Final answer
    x = 1,377,013.23

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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.