Home / 927,934.29-1,280,639.21-520,105.41

Finding the Fourth Proportional to 927,934.29, 1,280,639.21 and 520,105.41

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Solution

The fourth proportional to 927,934.29, 1,280,639.21 and 520,105.41 is: 717,795.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,934.29 : 1,280,639.21 = 520,105.41 : x
  2. Step 2: Convert to fraction form
    927,934.29/1,280,639.21 = 520,105.41/x
  3. Step 3: Cross multiply
    927,934.29x = 1,280,639.21 × 520,105.41
  4. Step 4: Simplify right side
    927,934.29x = 666,067,378,778.60
  5. Step 5: Solve for x
    x = 666,067,378,778.60/927,934.29
  6. Step 6: Final answer
    x = 717,795.85

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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.