Home / 1,755,138.40-2,632,707.60-857,156.20

Finding the Fourth Proportional to 1,755,138.40, 2,632,707.60 and 857,156.20

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Solution

The fourth proportional to 1,755,138.40, 2,632,707.60 and 857,156.20 is: 1,285,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,138.40 : 2,632,707.60 = 857,156.20 : x
  2. Step 2: Convert to fraction form
    1,755,138.40/2,632,707.60 = 857,156.20/x
  3. Step 3: Cross multiply
    1,755,138.40x = 2,632,707.60 × 857,156.20
  4. Step 4: Simplify right side
    1,755,138.40x = 2,256,641,642,127.12
  5. Step 5: Solve for x
    x = 2,256,641,642,127.12/1,755,138.40
  6. Step 6: Final answer
    x = 1,285,734.30

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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.