Home / 919,239.20-1,379,895.60-709,805.60

Finding the Fourth Proportional to 919,239.20, 1,379,895.60 and 709,805.60

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Solution

The fourth proportional to 919,239.20, 1,379,895.60 and 709,805.60 is: 1,065,508.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,239.20 : 1,379,895.60 = 709,805.60 : x
  2. Step 2: Convert to fraction form
    919,239.20/1,379,895.60 = 709,805.60/x
  3. Step 3: Cross multiply
    919,239.20x = 1,379,895.60 × 709,805.60
  4. Step 4: Simplify right side
    919,239.20x = 979,457,624,295.36
  5. Step 5: Solve for x
    x = 979,457,624,295.36/919,239.20
  6. Step 6: Final answer
    x = 1,065,508.98

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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.