Home / 382,013.55-527,188.14-209,930.22

Finding the Fourth Proportional to 382,013.55, 527,188.14 and 209,930.22

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Solution

The fourth proportional to 382,013.55, 527,188.14 and 209,930.22 is: 289,708.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,013.55 : 527,188.14 = 209,930.22 : x
  2. Step 2: Convert to fraction form
    382,013.55/527,188.14 = 209,930.22/x
  3. Step 3: Cross multiply
    382,013.55x = 527,188.14 × 209,930.22
  4. Step 4: Simplify right side
    382,013.55x = 110,672,722,211.59
  5. Step 5: Solve for x
    x = 110,672,722,211.59/382,013.55
  6. Step 6: Final answer
    x = 289,708.89

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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.