Home / 386,945.57-581,191.88-233,378.55

Finding the Fourth Proportional to 386,945.57, 581,191.88 and 233,378.55

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Solution

The fourth proportional to 386,945.57, 581,191.88 and 233,378.55 is: 350,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,945.57 : 581,191.88 = 233,378.55 : x
  2. Step 2: Convert to fraction form
    386,945.57/581,191.88 = 233,378.55/x
  3. Step 3: Cross multiply
    386,945.57x = 581,191.88 × 233,378.55
  4. Step 4: Simplify right side
    386,945.57x = 135,637,717,059.28
  5. Step 5: Solve for x
    x = 135,637,717,059.28/386,945.57
  6. Step 6: Final answer
    x = 350,534.36

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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.