Home / 1,969,519.46-2,955,197.55-771,130.58

Finding the Fourth Proportional to 1,969,519.46, 2,955,197.55 and 771,130.58

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Solution

The fourth proportional to 1,969,519.46, 2,955,197.55 and 771,130.58 is: 1,157,055.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,519.46 : 2,955,197.55 = 771,130.58 : x
  2. Step 2: Convert to fraction form
    1,969,519.46/2,955,197.55 = 771,130.58/x
  3. Step 3: Cross multiply
    1,969,519.46x = 2,955,197.55 × 771,130.58
  4. Step 4: Simplify right side
    1,969,519.46x = 2,278,843,200,746.08
  5. Step 5: Solve for x
    x = 2,278,843,200,746.08/1,969,519.46
  6. Step 6: Final answer
    x = 1,157,055.44

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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.