Home / 2,189,513.56-3,020,670.66-1,271,585.80

Finding the Fourth Proportional to 2,189,513.56, 3,020,670.66 and 1,271,585.80

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Solution

The fourth proportional to 2,189,513.56, 3,020,670.66 and 1,271,585.80 is: 1,754,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,513.56 : 3,020,670.66 = 1,271,585.80 : x
  2. Step 2: Convert to fraction form
    2,189,513.56/3,020,670.66 = 1,271,585.80/x
  3. Step 3: Cross multiply
    2,189,513.56x = 3,020,670.66 × 1,271,585.80
  4. Step 4: Simplify right side
    2,189,513.56x = 3,841,041,917,732.63
  5. Step 5: Solve for x
    x = 3,841,041,917,732.63/2,189,513.56
  6. Step 6: Final answer
    x = 1,754,290.08

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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.