Home / 1,277,856.27-1,913,389.07-771,732.53

Finding the Fourth Proportional to 1,277,856.27, 1,913,389.07 and 771,732.53

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Solution

The fourth proportional to 1,277,856.27, 1,913,389.07 and 771,732.53 is: 1,155,548.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,856.27 : 1,913,389.07 = 771,732.53 : x
  2. Step 2: Convert to fraction form
    1,277,856.27/1,913,389.07 = 771,732.53/x
  3. Step 3: Cross multiply
    1,277,856.27x = 1,913,389.07 × 771,732.53
  4. Step 4: Simplify right side
    1,277,856.27x = 1,476,624,587,865.45
  5. Step 5: Solve for x
    x = 1,476,624,587,865.45/1,277,856.27
  6. Step 6: Final answer
    x = 1,155,548.26

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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.