Home / 1,277,855.27-1,913,387.57-771,731.53

Finding the Fourth Proportional to 1,277,855.27, 1,913,387.57 and 771,731.53

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Solution

The fourth proportional to 1,277,855.27, 1,913,387.57 and 771,731.53 is: 1,155,546.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,855.27 : 1,913,387.57 = 771,731.53 : x
  2. Step 2: Convert to fraction form
    1,277,855.27/1,913,387.57 = 771,731.53/x
  3. Step 3: Cross multiply
    1,277,855.27x = 1,913,387.57 × 771,731.53
  4. Step 4: Simplify right side
    1,277,855.27x = 1,476,621,516,879.08
  5. Step 5: Solve for x
    x = 1,476,621,516,879.08/1,277,855.27
  6. Step 6: Final answer
    x = 1,155,546.76

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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.