Home / 669,053.45-922,873.78-396,928.69

Finding the Fourth Proportional to 669,053.45, 922,873.78 and 396,928.69

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Solution

The fourth proportional to 669,053.45, 922,873.78 and 396,928.69 is: 547,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,053.45 : 922,873.78 = 396,928.69 : x
  2. Step 2: Convert to fraction form
    669,053.45/922,873.78 = 396,928.69/x
  3. Step 3: Cross multiply
    669,053.45x = 922,873.78 × 396,928.69
  4. Step 4: Simplify right side
    669,053.45x = 366,315,080,530.75
  5. Step 5: Solve for x
    x = 366,315,080,530.75/669,053.45
  6. Step 6: Final answer
    x = 547,512.43

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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.