Home / 2,143,400.39-2,956,547.09-1,271,617.86

Finding the Fourth Proportional to 2,143,400.39, 2,956,547.09 and 1,271,617.86

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Solution

The fourth proportional to 2,143,400.39, 2,956,547.09 and 1,271,617.86 is: 1,754,034.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,400.39 : 2,956,547.09 = 1,271,617.86 : x
  2. Step 2: Convert to fraction form
    2,143,400.39/2,956,547.09 = 1,271,617.86/x
  3. Step 3: Cross multiply
    2,143,400.39x = 2,956,547.09 × 1,271,617.86
  4. Step 4: Simplify right side
    2,143,400.39x = 3,759,598,077,216.94
  5. Step 5: Solve for x
    x = 3,759,598,077,216.94/2,143,400.39
  6. Step 6: Final answer
    x = 1,754,034.43

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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.