Home / 386,784.25-533,771.46-217,030.93

Finding the Fourth Proportional to 386,784.25, 533,771.46 and 217,030.93

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Solution

The fourth proportional to 386,784.25, 533,771.46 and 217,030.93 is: 299,507.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,784.25 : 533,771.46 = 217,030.93 : x
  2. Step 2: Convert to fraction form
    386,784.25/533,771.46 = 217,030.93/x
  3. Step 3: Cross multiply
    386,784.25x = 533,771.46 × 217,030.93
  4. Step 4: Simplify right side
    386,784.25x = 115,844,916,371.26
  5. Step 5: Solve for x
    x = 115,844,916,371.26/386,784.25
  6. Step 6: Final answer
    x = 299,507.84

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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.