Home / 1,600,128.15-2,206,290.06-1,293,255.60

Finding the Fourth Proportional to 1,600,128.15, 2,206,290.06 and 1,293,255.60

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Solution

The fourth proportional to 1,600,128.15, 2,206,290.06 and 1,293,255.60 is: 1,783,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600,128.15 : 2,206,290.06 = 1,293,255.60 : x
  2. Step 2: Convert to fraction form
    1,600,128.15/2,206,290.06 = 1,293,255.60/x
  3. Step 3: Cross multiply
    1,600,128.15x = 2,206,290.06 × 1,293,255.60
  4. Step 4: Simplify right side
    1,600,128.15x = 2,853,296,975,319.34
  5. Step 5: Solve for x
    x = 2,853,296,975,319.34/1,600,128.15
  6. Step 6: Final answer
    x = 1,783,167.79

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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.