Home / 1,906,129.70-2,859,194.55-1,640,409.20

Finding the Fourth Proportional to 1,906,129.70, 2,859,194.55 and 1,640,409.20

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Solution

The fourth proportional to 1,906,129.70, 2,859,194.55 and 1,640,409.20 is: 2,460,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906,129.70 : 2,859,194.55 = 1,640,409.20 : x
  2. Step 2: Convert to fraction form
    1,906,129.70/2,859,194.55 = 1,640,409.20/x
  3. Step 3: Cross multiply
    1,906,129.70x = 2,859,194.55 × 1,640,409.20
  4. Step 4: Simplify right side
    1,906,129.70x = 4,690,249,044,409.86
  5. Step 5: Solve for x
    x = 4,690,249,044,409.86/1,906,129.70
  6. Step 6: Final answer
    x = 2,460,613.80

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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.