Home / 1,640,858.80-2,461,288.19-442,779.19

Finding the Fourth Proportional to 1,640,858.80, 2,461,288.19 and 442,779.19

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Solution

The fourth proportional to 1,640,858.80, 2,461,288.19 and 442,779.19 is: 664,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,858.80 : 2,461,288.19 = 442,779.19 : x
  2. Step 2: Convert to fraction form
    1,640,858.80/2,461,288.19 = 442,779.19/x
  3. Step 3: Cross multiply
    1,640,858.80x = 2,461,288.19 × 442,779.19
  4. Step 4: Simplify right side
    1,640,858.80x = 1,089,807,186,078.49
  5. Step 5: Solve for x
    x = 1,089,807,186,078.49/1,640,858.80
  6. Step 6: Final answer
    x = 664,168.78

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Double scale
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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.