Home / 465,935.09-698,903.54-128,976.71

Finding the Fourth Proportional to 465,935.09, 698,903.54 and 128,976.71

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Solution

The fourth proportional to 465,935.09, 698,903.54 and 128,976.71 is: 193,465.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,935.09 : 698,903.54 = 128,976.71 : x
  2. Step 2: Convert to fraction form
    465,935.09/698,903.54 = 128,976.71/x
  3. Step 3: Cross multiply
    465,935.09x = 698,903.54 × 128,976.71
  4. Step 4: Simplify right side
    465,935.09x = 90,142,275,540.81
  5. Step 5: Solve for x
    x = 90,142,275,540.81/465,935.09
  6. Step 6: Final answer
    x = 193,465.31

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1.5x scale

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.