Home / 1,411,389.28-1,947,706.72-766,814.80

Finding the Fourth Proportional to 1,411,389.28, 1,947,706.72 and 766,814.80

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Solution

The fourth proportional to 1,411,389.28, 1,947,706.72 and 766,814.80 is: 1,058,198.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,389.28 : 1,947,706.72 = 766,814.80 : x
  2. Step 2: Convert to fraction form
    1,411,389.28/1,947,706.72 = 766,814.80/x
  3. Step 3: Cross multiply
    1,411,389.28x = 1,947,706.72 × 766,814.80
  4. Step 4: Simplify right side
    1,411,389.28x = 1,493,530,338,955.46
  5. Step 5: Solve for x
    x = 1,493,530,338,955.46/1,411,389.28
  6. Step 6: Final answer
    x = 1,058,198.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.