Home / 925,439.11-1,277,171.05-517,578.90

Finding the Fourth Proportional to 925,439.11, 1,277,171.05 and 517,578.90

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Solution

The fourth proportional to 925,439.11, 1,277,171.05 and 517,578.90 is: 714,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,439.11 : 1,277,171.05 = 517,578.90 : x
  2. Step 2: Convert to fraction form
    925,439.11/1,277,171.05 = 517,578.90/x
  3. Step 3: Cross multiply
    925,439.11x = 1,277,171.05 × 517,578.90
  4. Step 4: Simplify right side
    925,439.11x = 661,036,789,639.06
  5. Step 5: Solve for x
    x = 661,036,789,639.06/925,439.11
  6. Step 6: Final answer
    x = 714,295.28

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1.5x scale

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.