Home / 1,294,605.20-1,940,449.80-621,009.20

Finding the Fourth Proportional to 1,294,605.20, 1,940,449.80 and 621,009.20

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Solution

The fourth proportional to 1,294,605.20, 1,940,449.80 and 621,009.20 is: 930,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,605.20 : 1,940,449.80 = 621,009.20 : x
  2. Step 2: Convert to fraction form
    1,294,605.20/1,940,449.80 = 621,009.20/x
  3. Step 3: Cross multiply
    1,294,605.20x = 1,940,449.80 × 621,009.20
  4. Step 4: Simplify right side
    1,294,605.20x = 1,205,037,177,938.16
  5. Step 5: Solve for x
    x = 1,205,037,177,938.16/1,294,605.20
  6. Step 6: Final answer
    x = 930,814.41

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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.