Home / 395,222.71-592,928.39-128,983.72

Finding the Fourth Proportional to 395,222.71, 592,928.39 and 128,983.72

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Solution

The fourth proportional to 395,222.71, 592,928.39 and 128,983.72 is: 193,506.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,222.71 : 592,928.39 = 128,983.72 : x
  2. Step 2: Convert to fraction form
    395,222.71/592,928.39 = 128,983.72/x
  3. Step 3: Cross multiply
    395,222.71x = 592,928.39 × 128,983.72
  4. Step 4: Simplify right side
    395,222.71x = 76,478,109,435.81
  5. Step 5: Solve for x
    x = 76,478,109,435.81/395,222.71
  6. Step 6: Final answer
    x = 193,506.36

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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.