Home / 381,975.18-527,125.59-209,904.23

Finding the Fourth Proportional to 381,975.18, 527,125.59 and 209,904.23

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Solution

The fourth proportional to 381,975.18, 527,125.59 and 209,904.23 is: 289,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,975.18 : 527,125.59 = 209,904.23 : x
  2. Step 2: Convert to fraction form
    381,975.18/527,125.59 = 209,904.23/x
  3. Step 3: Cross multiply
    381,975.18x = 527,125.59 × 209,904.23
  4. Step 4: Simplify right side
    381,975.18x = 110,645,888,446.62
  5. Step 5: Solve for x
    x = 110,645,888,446.62/381,975.18
  6. Step 6: Final answer
    x = 289,667.74

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1.5x scale

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.