Home / 1,377,188.80-2,065,783.20-618,737.20

Finding the Fourth Proportional to 1,377,188.80, 2,065,783.20 and 618,737.20

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Solution

The fourth proportional to 1,377,188.80, 2,065,783.20 and 618,737.20 is: 928,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,188.80 : 2,065,783.20 = 618,737.20 : x
  2. Step 2: Convert to fraction form
    1,377,188.80/2,065,783.20 = 618,737.20/x
  3. Step 3: Cross multiply
    1,377,188.80x = 2,065,783.20 × 618,737.20
  4. Step 4: Simplify right side
    1,377,188.80x = 1,278,176,912,975.04
  5. Step 5: Solve for x
    x = 1,278,176,912,975.04/1,377,188.80
  6. Step 6: Final answer
    x = 928,105.80

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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.