Home / 395,083.64-592,719.78-128,844.38

Finding the Fourth Proportional to 395,083.64, 592,719.78 and 128,844.38

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Solution

The fourth proportional to 395,083.64, 592,719.78 and 128,844.38 is: 193,297.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,083.64 : 592,719.78 = 128,844.38 : x
  2. Step 2: Convert to fraction form
    395,083.64/592,719.78 = 128,844.38/x
  3. Step 3: Cross multiply
    395,083.64x = 592,719.78 × 128,844.38
  4. Step 4: Simplify right side
    395,083.64x = 76,368,612,567.84
  5. Step 5: Solve for x
    x = 76,368,612,567.84/395,083.64
  6. Step 6: Final answer
    x = 193,297.33

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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.